Optics research for future receivers at NAOJ. Alvaro Gonzalez National Astronomical Observatory of Japan
|
|
|
- Charity Allison
- 6 years ago
- Views:
Transcription
1 Optics research for future receivers at NAOJ Alvaro Gonzalez National Astronomical Observatory of Japan 1
2 Outline Follow up to presentations by: D. Iono, T. Kojima Optics for lower ALMA bands Band 1 (35 50 GHz) Band 2 (67 90 GHz) Band 2+3 ( GHz) Wideband RF components (band 7+8) New beam measurement system ( GHz) THz frequencies Future work: multibeam
3 Optics for mm wave freqs Profiled corrugated horns Design of low noise lens optics: Band 1 (35 50 GHz), with ASIAA and UdC Band 2 (67 90 GHz), with NRAO Band 2+3 ( GHz), with ESO, INAF, and UdC Support of measurements for b1 (Taiwan/Chile) and b2+3 (ESO) / Support for ALMA Eff. Calculator (NRAO) Other presentations by: T. Huang (ASIAA), P. Mena (UdC)
4 Challenges Truncation at cryostat apertures Limited aperture eff. Large noise contribution Power in the aperture (%) Radius/wavelength Effect of IR filters on performance: aperture eff, polarization eff, noise temperature...
5 Band 1 (35-50 GHz) Project led by ASIAA (Taiwan) in collaboration with NAOJ (Japan), NRAO (USA), Univ Chile, HIA (Canada) Optics based on lens (NAOJ) and profiled horn (UdC) Max Ap. Eff from Airy pattern < 84.1%! Gonzalez, EuCAP15 5
6 Band 2 (67-90 GHz) NRAO project > NAOJ contributes the rx optics design Lens just on top of cryostat to refocus the fields from a long conical horn (designed by NRAO / S. Srikanth) Maximum aperture eff from Airy pattern considerations is only 83.8%! Measurements at NRAO 6
7 Band 2+3 ( GHz) Project led by ESO in collaboration with INAF (Italy), NAOJ (Japan), Univ. Chile, RAL/Univ. Manchester (UK) Horns designed by INAF and UdC Optical designs with both horns done by NAOJ Based on zoned lens just on top of cryostat top plate Maximum aperture eff changes with frequency 7
8 Band 2+3 measurements Measurement campaign at ESO in Dec. 15 contributed automatic acquisition software development and analysis of results (far field transformation, Gaussian beam fitting, aperture efficiency calculations ) 8
9 Outline Optics for lower ALMA bands Band 1 (35 50 GHz) Band 2 (67 90 GHz) Band 2+3 ( GHz) Wideband RF components (band 7+8) New beam measurement system ( GHz) THz frequencies Future work: multibeam
10 Band 7+8 ( GHz) Fractional BW ~60% NAOJ High Jc SIS junctions Poster by M. Kroug Collaboration with KASI for ASTE receiver Designs: Feed horn 15dB LO coupler 3dB coupler B7+8 LO combiner Poster by J W. Lee (KASI) Preliminary cold optics design with 2 mirrors 10
11 Band 7+8 ( GHz) B7+8 feed horn Strong collaboration with KASI (PhD student, B. Lee) Two preliminary feed horn designs (NAOJ + KASI) merged Optimization on going
12 Outline Optics for lower ALMA bands Band 1 (35 50 GHz) Band 2 (67 90 GHz) Band 2+3 ( GHz) Wideband RF components (band 7+8) New beam measurement system ( GHz) THz frequencies Future work: multibeam
13 Implementation A. Gonzalez et al, IEEE Trans THz Sci&Tech, March16 13
14 Re-configurability A. Gonzalez et al, IEEE Trans THz Sci&Tech, March16 14
15 ASTE THz Rx (Univ. Tokyo) Receiver cold beam patterns measured at 0.9 and 1.4 THz with reconfigurable measurement system ASTE THz receiver (Univ. Tokyo/ Yamamoto lab) GRASP simulation vs measurement (NF plane is different) 0.91 THz 1.37 THz Problem with diagonal horn is well understood now thanks to this measurements!
16 B11 ( THz) corrugated horns 2 kinds of corrug. horns tested: profiled/conical Direct machined in 1 Aluminum block, including WG transition Corrugations are 34 um wide 52 um deep 16
17 B11 ( THz) corrugated horns Conical corrugated horns fabrication was successful by direct machining of a single Aluminum block! Including circular to rect. WG transition 17
18 Outline Optics for lower ALMA bands Band 1 (35 50 GHz) Band 2 (67 90 GHz) Band 2+3 ( GHz) Wideband RF components (band 7+8) New beam measurement system ( GHz) THz frequencies Future work: multibeam
19 Conclusions NAOJ Future Receiver Development Group focuses on: ALMA 1, 2, 2+3 optics UWB (7+8) THz Multibeam See T. Kojima s presentation Good results in first 3 topics Multibeam research to be started soon W. Shan: planar OMT / integrated multibeam receiver Optimum coupling to offset pixels Problem of small cryostat apertures vs #pixels 19
Simulating Reflector Antenna Performance with GRASP9
Simulating Reflector Antenna Performance with GRASP9 Bruce Veidt National Research Council of Canada bruce.veidt@nrc.ca and Walter Brisken NRAO Socorro wbrisken@aoc.nrao.edu September 2011 Opening Remarks
ALMA Antenna responses in CASA imaging
ALMA Antenna responses in CASA imaging Dirk Petry (ESO), December 2012 Outline Motivation ALBiUS/ESO work on CASA responses infrastructure and ALMA beam library First test results 1 Motivation ALMA covers
Development of Focal-Plane Arrays and Beamforming Networks at DRAO
Development of Focal-Plane Arrays and Beamforming Networks at DRAO Bruce Veidt Dominion Radio Astrophysical Observatory Herzberg Institute of Astrophysics National Research Council of Canada Penticton,
Project Overview and Status
Project Overview and Status EVLA Advisory Committee Meeting, March 19-20, 2009 Mark McKinnon EVLA Project Manager Outline Project Goals Organization Staffing Progress since last meeting Budget Contingency
ALMA Snooping Project Interface (SnooPI) User Manual
ALMA Snooping Project Interface (SnooPI) User Manual Evanthia Hatziminaoglou Doc 6.11, ver. 3.0 March 2018 ALMA, an international astronomy facility, is a partnership of ESO (representing its member states),
EVLA Front-End CDR. EVLA K-Band (18-26 GHz) Receiver
EVLA Front-End CDR EVLA K-Band (18-26 GHz) Receiver 1 EVLA K-Band Receiver Overview 1) EVLA Upgrade - Existing VLA Configuration - Required Modifications - New Upgraded EVLA Block Diagram 2) Block Converter
ALMA Snooping Project Interface (SnooPI) User Manual
Doc 4.11, ver. 1.2 February 2017 ALMA Snooping Project Interface (SnooPI) User Manual Evanthia Hatziminaoglou ALMA, an international astronomy facility, is a partnership of ESO (representing its member
Construction of ALMA SIS Mixer Measurement System
Item Construction of ALMA SIS Mixer Measurement System Labor (man-days) Vendor Model Number Quantity Unit Price Total Prices Engineering Technician Shop 1 Rack Components 2 IF(cryo.) Switch Control Chassis
Visualization & the CASA Viewer
Visualization & the Viewer Juergen Ott & the team Atacama Large Millimeter/submillimeter Array Expanded Very Large Array Robert C. Byrd Green Bank Telescope Very Long Baseline Array Visualization Goals:
Abstract. 1 Introduction
Combined mode matching-integral equation technique for feeders optimization R. Coccioli,* G. Pelosi,* R. Ravanelli* "Microwave Laboratory, Electrical Engineering Department, University offlorence, Via
Design of Aperiodic Frequency Selective Surfaces for Compact Quasi-Optical Networks
Design of Aperiodic Frequency Selective Surfaces for Compact Quasi-Optical Networks Min Zhou 1, Stig B. Sørensen 1, Niels Vesterdal 1, Raymond Dickie 2, Paul Baine 2, John Montgomery 2, Robert Cahill 2,
Novel Magnetic Field Mapping Technology for Small and Closed Aperture Undulators
Novel Magnetic Field Mapping Technology for Small and Closed Aperture Undulators Erik Wallen and Hyun-Wook Kim 06.06.2017 Outline Introduction - Measurement systems at LBNL - Activities at LBNL - Need
ALMA Software development. George KOSUGI: NAOJ, ALMA ICT-EA Manager
ALMA Software development George KOSUGI: NAOJ, ALMA ICT-EA Manager Contents ALMA Software Developments in EU (ESO) ALMA Software Developments in NA (NRAO) ALMA+ Software Developments in EA (NAOJ) Development
KVN. Duk-Gyoo Roh, and staffs of KASI & NAOJ + Kagoshima Univ. 8 th VERA User s Meeting, Mitaka NAOJ
KVN Duk-Gyoo Roh, and staffs of KASI & NAOJ + Kagoshima Univ. 8 th VERA User s Meeting, 2010. 09. 16-17. Mitaka NAOJ Contents EAVN & KJJVC project KJJVC framework and status Playback Systems RVDB System
Uncertainty simulator to evaluate the electrical and mechanical deviations in cylindrical near field antenna measurement systems
Uncertainty simulator to evaluate the electrical and mechanical deviations in cylindrical near field antenna measurement systems S. Burgos*, F. Martín, M. Sierra-Castañer, J.L. Besada Grupo de Radiación,
How accurately do our imaging algorithms reconstruct intensities and spectral indices of weak sources?
How accurately do our imaging algorithms reconstruct intensities and spectral indices of weak sources? Urvashi Rau, Sanjay Bhatnagar, Frazer Owen ( NRAO ) 29th Annual New Mexico Symposium, NRAO, Socorro,
PROPEL 5G PROcedures and techniques for Proving compliance to Exposure Limits of 5G wireless devices
PROPEL 5G PROcedures and techniques for Proving compliance to Exposure Limits of 5G wireless devices A Mobile Manufacturers Forum sponsored project Benoît Derat, Lyazid Aberbour, Sergio Arianos, ART-Fi
Optical & Infrared Instrumentation Effort in ASIAA. Shiang-Yu Wang ( 王祥宇 ) Institute of Astronomy and Astrophysics Academia Sinica
Optical & Infrared Instrumentation Effort in ASIAA Shiang-Yu Wang ( 王祥宇 ) Institute of Astronomy and Astrophysics Academia Sinica total number of faculty Growth of ASIAA 45 40 35 Total number of ASIAA
PRELIMINARY DATA SHEET C BAND SUPER LOW NOISE HJ FET
PRELIMINARY DATA SHEET FEATURES VERY LOW NOISE FIGURE:.5 db TYP at 4 GHz HIGH ASSOCIATED GAIN: 16. db TYP at 4 GHz GATE WIDTH: 8 µm TAPE & REEL PACKAGING OPTION AVAILABLE LOW COST PLASTIC PACKAGE DESCRIPTION
CASA. Algorithms R&D. S. Bhatnagar. NRAO, Socorro
Algorithms R&D S. Bhatnagar NRAO, Socorro Outline Broad areas of work 1. Processing for wide-field wide-band imaging Full-beam, Mosaic, wide-band, full-polarization Wide-band continuum and spectral-line
Full-Wave and Multi-GTD Analysis of the Ice Cloud Imager for MetOp-SG
Full-Wave and Multi-GTD Analysis of the Ice Cloud Imager for MetOp-SG Jakob Rosenkrantz de Lasson 1, Per Heighwood Nielsen 1, Cecilia Cappellin 1, David Marote Alvarez 2, Marc Bergada 2, Raquel Gonzalez
MEMS Automotive Collision Avoidance Radar beamformer
MEMS Automotive Collision Avoidance Radar beamformer Ahmad Sinjari Ph.D. Candidate Supervisor: Dr. Sazzadur Chowdhury Overview Introduction State-of-the-Art Design challenges Rotman lens beamformer Rotman
New Sony DepthSense TM ToF Technology
ADVANCED MATERIAL HANDLING WITH New Sony DepthSense TM ToF Technology Jenson Chang Product Marketing November 7, 2018 1 3D SENSING APPLICATIONS Pick and Place Drones Collision Detection People Counting
> Compact range feed horns
> Compact range feed horns ➊ TECHNICAL PERFORMANCES Rotationally symmetric radiation pattern Low cross polarization Stable amplitude taper with frequency Optimized refl ector edge and chamber wall illumination
ELECTRICAL SPECIFICATIONS**
ico Xinger 1dB Directional Coupler Description The 161 ico Xinger is a low profile, miniature 1dB directional coupler in an easy to use surface mount package designed for MMDS and WLAN applications. The
NEAR-IR BROADBAND POLARIZER DESIGN BASED ON PHOTONIC CRYSTALS
U.P.B. Sci. Bull., Series A, Vol. 77, Iss. 3, 2015 ISSN 1223-7027 NEAR-IR BROADBAND POLARIZER DESIGN BASED ON PHOTONIC CRYSTALS Bogdan Stefaniţă CALIN 1, Liliana PREDA 2 We have successfully designed a
60 GHz WLAN. 03 Name Affiliations Address Phone . Schleinitzstraße Braunschweig
Deterministic i i Channel lmodeling for 60 GHz WLAN Authors: Date: 2009-03-10 03 Name Affiliations Address Phone email Martin Jacob Thomas Kürner TU Braunschweig, Germany TU Braunschweig, Germany Schleinitzstraße
Compact visible laser modules. QD laser, Inc.
Compact visible laser modules and NIR DFBs with high speed modulation October, 2012 QD laser, Inc. DC0301-02 Contents About QD Laser, Inc. NIR DFB laser Introduction of semiconductor DFB laser Applications
Electronics Division Technical Note No. 155
NATIONAL RADIO ASTRONOMY OBSERVATORY Charlottesville, Virginia Electronics Division Technical Note No. 155 Title: PROGRAM s SCAY.Thit* FOR THE ANALYSIS OF DIFLECTRIC MATCHING LAYERS Author(s): Nancyjane
New Sony DepthSense TM ToF Technology
ADVANCED MATERIAL HANDLING WITH New Sony DepthSense TM ToF Technology Jenson Chang Product Marketing November 7, 2018 1 3D SENSING APPLICATIONS Pick and Place Drones Collision Detection People Counting
Warning - Read the entire VDI User guide for this product prior to operation.
VDI USER GUIDE Product: 1900 GHz Amplifier Multiplier Chain Serial Number(s): VDI-AMC-S186B (upgrade) Amplifier: Spacek Labs A286-2XWB-33 SN 8M18 Components: VDI 52R1X2 1-17, VDI 110R1X2 1-14, VDI 200R2X2
Israel, 24 November Reaching New Heights in Astronomy
Reaching New Heights in Astronomy ESO and Industry Construction of world-class observatories Buildings, telescopes, instruments Only possible with strong involvement of industry Procurement by competitive
INVESTIGATIONS ON THE ANALYSIS AND DESIGN OF APERIODIC FREQUENCY SELECTIVE SURFACES FOR SPACE APPLICATIONS
INVESTIGATIONS ON THE ANALYSIS AND DESIGN OF APERIODIC FREQUENCY SELECTIVE SURFACES FOR SPACE APPLICATIONS M. Zhou 1, S. B. Sørensen 1, N. Vesterdal 1, R. Dickie 2, R. Cahill 2, and G. Toso 3 1 TICRA,
Enabling Technologies for Next Generation Wireless Systems
Enabling Technologies for Next Generation Wireless Systems Dr. Amitava Ghosh Nokia Fellow Nokia Bell Labs 10 th March, 2016 1 Nokia 2015 Heterogeneous use cases diverse requirements >10 Gbps peak data
Adaptive selfcalibration for Allen Telescope Array imaging
Adaptive selfcalibration for Allen Telescope Array imaging Garrett Keating, William C. Barott & Melvyn Wright Radio Astronomy laboratory, University of California, Berkeley, CA, 94720 ABSTRACT Planned
Mm-wave integrated waveguide components in silicon technology
Mm-wave integrated waveguide components in silicon technology G. Gentile, M. Spirito, L.C.N. de Vreede, et al. Electronics Research Laboratory (ELCA), Dimes, Delft University of Technology, The Netherlands
A Single Grating-lens Focusing Two Orthogonally Polarized Beams in Opposite Direction
, pp.41-45 http://dx.doi.org/10.14257/astl.2016.140.08 A Single Grating-lens Focusing Two Orthogonally Polarized Beams in Opposite Direction Seung Dae Lee 1 1* Dept. of Electronic Engineering, Namseoul
Modeling Antenna Beams
Modeling Antenna Beams Walter Brisken National Radio Astronomy Observatory 2011 Sept 22 1 / 24 What to learn from this talk EM simulations of antennas can be complicated Many people have spent careers
Virtual Acoustic Prototyping for Loudspeaker Horn Development
Presented at the COMSOL Conference 2010 Boston Virtual Acoustic Prototyping for Loudspeaker Horn Development Alex Salvatti Senior R&D Engineer JBL Professional, Northridge CA alex.salvatti@harman.com Outline
Measurement of Highly Parabolic Mirror using Computer Generated Hologram
Measurement of Highly Parabolic Mirror using Computer Generated Hologram Taehee Kim a, James H. Burge b, Yunwoo Lee c a Digital Media R&D Center, SAMSUNG Electronics Co., Ltd., Suwon city, Kyungki-do,
Appendix E. Development of methodologies for Brightness Temperature evaluation for the MetOp-SG MWI radiometer. Alberto Franzoso (CGS, Italy)
111 Appendix E Development of methodologies for Brightness Temperature evaluation for the MetOp-SG MWI radiometer Alberto Franzoso (CGS, Italy) Sylvain Vey (ESA/ESTEC, The Netherlands) 29 th European Space
Dual-Ridge Horns Dual-Ridge Horns
Dual-Ridge Horns Dual-Ridge Horns Typical 3D radiation pattern SOLUTION FOR Gain reference Far-field test ranges Reflector feeds for high gain applications Main features Technical performance Stable gain
GBT Commissioning Memo 11: Plate Scale and pointing effects of subreflector positioning at 2 GHz.
GBT Commissioning Memo 11: Plate Scale and pointing effects of subreflector positioning at 2 GHz. Keywords: low frequency Gregorian, plate scale, focus tracking, pointing. N. VanWey, F. Ghigo, R. Maddalena,
Low Current, High Performance NPN Silicon Bipolar Transistor. Technical Data AT AT-32033
Low Current, High Performance NPN Silicon Bipolar Transistor Technical Data AT-311 AT-333 Features High Performance Bipolar Transistor Optimized for Low Current, Low Voltage Operation 9 MHz Performance:
The Virtual Observatory in Australia Connecting to International Initiatives. Peter Lamb. CSIRO Mathematical & Information Sciences
The Virtual Observatory in Australia Connecting to International Initiatives Peter Lamb CSIRO Mathematical & Information Sciences The Grid & escience Convergence of high-performance computing, huge data
Using ADS to Post Process Simulated and Measured Models. Presented by Leon Wu March 19, 2012
Using ADS to Post Process Simulated and Measured Models Presented by Leon Wu March 19, 2012 Presentation Outline Connector Models From Simulation Connector Models From Measurement The Post processing,
Analysis of Slanted Gratings for Lightguide Coupling
Analysis of Slanted Gratings for Lightguide Coupling Abstract Slanted gratings are commonly used for coupling light into optical lightguides due to their high efficiency in a certain diffraction order.
A systematic approach to the analysis of polarisation-sensitive reflectors
A systematic approach to the analysis of polarisation-sensitive reflectors Hans-Henrik Viskum TICRA Læderstræde 34, 2. DK-1201 Copenhagen K Denmark hhv@ticra.com ABSTRACT The analysis of a polarisation-sensitive
CONTENTS Preface Introduction Finite Element Formulation Finite Element Mesh Truncation
Preface xi 1 Introduction 1 1.1 Numerical Simulation of Antennas 1 1.2 Finite Element Analysis Versus Other Numerical Methods 2 1.3 Frequency- Versus Time-Domain Simulations 5 1.4 Brief Review of Past
Case Study: CyberSKA - A Collaborative Platform for Data Intensive Radio Astronomy
Case Study: CyberSKA - A Collaborative Platform for Data Intensive Radio Astronomy Outline Motivation / Overview Participants / Industry Partners Documentation Architecture Current Status and Services
Research on Correction and Optimization of Post-processing Imaging of Structure with Non-planar Interface Using Full Matrix Data of Ultrasonic Array
19 th World Conference on Non-Destructive Testing 2016 Research on Correction and Optimiation of Post-processing Imaging of Structure with Non-planar Interface Using Full Matrix Data of Ultrasonic Array
A REVIEW OF MULTIPLE BEAM ANTENNA ARRAY TRADEOFFS
A REVIEW OF MULTIPLE BEAM ANTENNA ARRAY TRADEOFFS R. C. Hansen Consulting Engineer Tarzana, CA 91356 ABSTRACT Telemetry instrumentation antennas often require several beams to allow simultaneous tracking
New Features in CODE V Version 10
Webinar Series New Features in CODE V Version 10 3280 East Foothill Boulevard Pasadena, California 91107 USA (626) 795-9101 Fax (626) 795-0184 e-mail: service@opticalres.com World Wide Web: http://www.opticalres.com
Renishaw invia Raman Microscope (April 2006)
Renishaw invia Raman Microscope (April 2006) I. Starting the System 1. The main system unit is ON all the time. 2. Switch on the Leica microscope and light source for reflective bright field (BF) imaging.
Mu lt i s p e c t r a l
Viewing Angle Analyser Revolutionary system for full spectral and polarization measurement in the entire viewing angle EZContrastMS80 & EZContrastMS88 ADVANCED LIGHT ANALYSIS by Field iris Fourier plane
CanariCam: Polarimetry & Data Reduction
Acknowledgements CanariCam: Polarimetry & Data Reduction Chris Packham, Charlie Telesco & The CanariCam Team University of Florida Text heavily drawn from Polpack Starlink manual by Berry & Gledhill Longevity
MID: Materials Imaging and Dynamics Instrument
MID: Materials Imaging and Dynamics Instrument A. Madsen 1,*, J. Hallmann 1, T. Roth 1, G. Ansaldi 1, W. Lu 1,2 1 European XFEL 2 Technische Universität Berlin * anders.madsen@xfel.eu XFEL User Meeting
SysML for Telescope System Modeling
by the INCOSE MBSE Challenge Team SE^2 Presented to the LA chapter of INCOSE, February 2 nd 2010 page 1 Agenda What is SE^2 What is ESO? What is the Challenge project about? The deliverables What have
Hybrid Couplers 3dB, 90º Type PC2025A2100AT00
GENERAL DESCRIPTION The PC2025A2100AT00 is a RoHS compliant low profile wideband 3dB hybrid coupler which can support mobile applications, including PCS and DCS applications. The power coupler series of
7/11/2011. FLVS Computer Science is STEMulating. Segment 1. Segment 2. Florida Virtual School
Florida Virtual School Established in 1999 Grown from 250 students to over 100,000 students. Grown from 4 courses to over 100 courses. Grown from 6 teachers to over 1000 teachers. FLVS Computer Science
Visible-frequency dielectric metasurfaces for multi-wavelength achromatic and highly-dispersive holograms
Supporting Materials Visible-frequency dielectric metasurfaces for multi-wavelength achromatic and highly-dispersive holograms Bo Wang,, Fengliang Dong,, Qi-Tong Li, Dong Yang, Chengwei Sun, Jianjun Chen,,
CASA Status. Crystal Brogan (subsystem scientist) ASAC Meeting, March 9, 2010 Mitaka, Japan. NRAO/North American ALMA Science Center
Status ASAC Meeting, March 9, 2010 Mitaka, Japan Crystal Brogan (subsystem scientist) NRAO/North American ALMA Science Center Atacama Large Millimeter/submillimeter Array Expanded Very Large Array Robert
Development and Applications of an Interferometric Ground-Based SAR System
Development and Applications of an Interferometric Ground-Based SAR System Tadashi Hamasaki (1), Zheng-Shu Zhou (2), Motoyuki Sato (2) (1) Graduate School of Environmental Studies, Tohoku University Aramaki
Belief propagation and MRF s
Belief propagation and MRF s Bill Freeman 6.869 March 7, 2011 1 1 Outline of MRF section Inference in MRF s. Gibbs sampling, simulated annealing Iterated conditional modes (ICM) Belief propagation Application
Interconnect Challenges in a Many Core Compute Environment. Jerry Bautista, PhD Gen Mgr, New Business Initiatives Intel, Tech and Manuf Grp
Interconnect Challenges in a Many Core Compute Environment Jerry Bautista, PhD Gen Mgr, New Business Initiatives Intel, Tech and Manuf Grp Agenda Microprocessor general trends Implications Tradeoffs Summary
The Atmospheric Dispersion Corrector Software for the VST
The Atmospheric Dispersion Corrector Software for the VST M. Brescia, P. Schipani, G. Spirito, F. Cortecchia, G. Marra, F. Perrotta INAF Capodimonte Astronomical Observatory Via Moiariello 16, I-80131
SPIcam: an overview. Alan Diercks Institute for Systems Biology 23rd July 2002
SPIcam: an overview Alan Diercks Institute for Systems Biology diercks@systemsbiology.org 23rd July 2002 1 Outline Overview of instrument CCDs mechanics instrument control performance construction anecdotes
Reflection AB5 Concave Mirror. Teacher s Notes
Reflection: Concave Mirror Teacher s Notes Main Topic Subtopic Learning Level Technology Level Activity Type Required Equipment Optional Equipment & Color Reflection Middle Low Student and Optical Set
Shared Risk Observing
Shared Risk Observing EVLA Advisory Committee Meeting, March 19-20, 2009 Claire Chandler Deputy AD for Science, NM Ops Motivation Early science: Want to get EVLA science capabilities i into the hands of
Terahertz ISAR and x-ray imaging of wind turbine blade structures
Terahertz ISAR and x-ray imaging of wind turbine blade structures Robert Martin, Christopher S. Baird, Robert H. Giles, Christopher Niezrecki University of Massachusetts Lowell Manufacturing Wind Turbine
FOUNDRY SERVICES. RF & mm-wave Applications. 1GHz 2GHz 5GHz 10GHz 20GHz 50GHz 100GHz
FOUNDRY SERVICES UMS has developed a proven family of GaAs based processes for high performance low noise and high power MMICs. These processes are extensively used by foundry customers and by UMS to offer
Keysight Technologies UXG Agile Signal Generator, Modified Version N5191A
Keysight Technologies UXG Agile Signal Generator, Modified Version N5191A Configuration Guide This configuration guide will help you determine which performance options, accessories, and services to include
PRELIMINARY. The dbm Optics CSA MUX application is a comprehensive test for DeMultiplexers.
Application Note 2004-015B MUX/DeMux Application Parameter Details Overview PRELIMINARY This application note describes the details of dbm CSA DeMux Application parameter alternatives. In addition, it
2011 Optical Science & Engineering PhD Qualifying Examination Optical Sciences Track: Advanced Optics Time allowed: 90 minutes
2011 Optical Science & Engineering PhD Qualifying Examination Optical Sciences Track: Advanced Optics Time allowed: 90 minutes Answer all four questions. All questions count equally. 3(a) A linearly polarized
Gaussian Beam Calculator for Creating Coherent Sources
Gaussian Beam Calculator for Creating Coherent Sources INTRODUCTION Coherent sources are represented in FRED using a superposition of Gaussian beamlets. The ray grid spacing of the source is used to determine
New Modelling Capabilities in Commercial Software for High-Gain Antennas
6th European Conference on Antennas and Propagation (EUCAP) New Modelling Capabilities in Commercial Software for High-Gain Antennas Erik Jørgensen, Michael Lumholt, Peter Meincke, Min Zhou, Stig B. Sørensen,
Null test for a highly paraboloidal mirror
Null test for a highly paraboloidal mirror Taehee Kim, James H. Burge, Yunwoo Lee, and Sungsik Kim A circular null computer-generated hologram CGH was used to test a highly paraboloidal mirror diameter,
Computational Cameras: Exploiting Spatial- Angular Temporal Tradeoffs in Photography
Mitsubishi Electric Research Labs (MERL) Computational Cameras Computational Cameras: Exploiting Spatial- Angular Temporal Tradeoffs in Photography Amit Agrawal Mitsubishi Electric Research Labs (MERL)
Empirical Parameterization of the Antenna Aperture Illumination Pattern
Empirical Parameterization of the Antenna Aperture Illumination Pattern Preshanth Jagannathan UCT/NRAO Collaborators : Sanjay Bhatnagar, Walter Brisken Measurement Equation The measurement equation in
TR Digital Software-Driven Traffic Radar Unit. ANPR Automatic Number Plate Recognition. Mobile, Fixed, and Portable. Bi-direction radar
TR - 100 200 Digital Software-Driven Traffic Radar Unit ANPR Automatic Number Plate Recognition Mobile, Fixed, and Portable Bi-direction radar Mobile, Fixed, and Portable Flash White or IR invisible 10
CONTRIBUTION TO THE DEVELOPMENT OF FLAT FRESNEL REFLECTORS IN W BAND FOR NEW IMAGING APPLICATIONS
Progress In Electromagnetics Research, Vol. 142, 1 14, 2013 CONTRIBUTION TO THE DEVELOPMENT OF FLAT FRESNEL REFLECTORS IN W BAND FOR NEW IMAGING APPLICATIONS Kaoutar Zeljami 1, Juan Vassal lo 2, Antonio
Diffuse Terahertz Reflection Imaging using Quantum Cascade Lasers
Diffuse Terahertz Reflection Imaging using Quantum Cascade Lasers P. Dean, S. P. Khanna, S. Chakraborty, M. Lachab, A. G. Davies, E. H, Linfield Institute of Microwaves and Photonics School of Electronic
ECEG105/ECEU646 Optics for Engineers Course Notes Part 5: Polarization
ECEG105/ECEU646 Optics for Engineers Course Notes Part 5: Polarization Prof. Charles A. DiMarzio Northeastern University Fall 2008 Sept 2008 11270-05-1 Wave Nature of Light Failure of Raytracing Zero-λ
Key Features for OptiFDTD 14
14.0 New Features Created to address the needs of research scientists, photonic engineers, professors and students; OptiFDTD satisfies the demand of users who are searching for a powerful yet easy to use
Reduced Size Koch Fractal Hybrid Coupler for IEEE b/g Wireless Applications
426 Reduced Size Koch Fractal Hybrid Coupler for IEEE 802.11b/g Wireless Applications K.Annaram*, S.Deepak Ram Prasath**, Dr.S.Raju***, Dr.V.Abhaikumar **** *Research Associate, **Research Associate, ***
Phased Array Antennas with Optimized Element Patterns
Phased Array Antennas with Optimized Element Patterns Sergei P. Skobelev ARTECH HOUSE BOSTON LONDON artechhouse.com Contents Preface Introduction xi xiii CHAPTER 1 General Concepts and Relations 1 1.1
Board Design Guidelines for PCI Express Architecture
Board Design Guidelines for PCI Express Architecture Cliff Lee Staff Engineer Intel Corporation Member, PCI Express Electrical and Card WGs The facts, techniques and applications presented by the following
Optical design of COrE+
Optical design of COrE+ Karl Young November 23, 2015 The optical designs for COrE+ were made by Darragh McCarthy and Neil Trappe at Maynooth University and Karl Young and Shaul Hanany at University of
Mode-Field Diameter and Spot Size Measurements of Lensed and Tapered Specialty Fibers
Mode-Field Diameter and Spot Size Measurements of Lensed and Tapered Specialty Fibers By Jeffrey L. Guttman, Ph.D., Director of Engineering, Ophir-Spiricon Abstract: The Mode-Field Diameter (MFD) and spot
Cyrostat Design -Camera Section Justin Holwell
Cyrostat Design -Camera Section Justin Holwell July 6 th, 2004 JLH 1 Camera Dewar 3D Layout JLH 2 Camera Dewar X-Section JLH 3 Camera Components Lens Mounts 12 Lens Cells and 2 Mounts Grism Assembly 2
Progress on AST3-3 IR Camera Design Jessica Zheng
Progress on AST3-3 IR Camera Design Jessica Zheng Michael Ashley, Michael Burton, Vlad Churilov,Robert Content, Peter Gillingham, Karl Glazebrook, Lu Haiping, Mike Ireland, Jon Lawrence, Anna Moore,Jeremy
INTRODUCTION TO The Uniform Geometrical Theory of Diffraction
INTRODUCTION TO The Uniform Geometrical Theory of Diffraction D.A. McNamara, C.W.I. Pistorius J.A.G. Malherbe University of Pretoria Artech House Boston London CONTENTS Preface xiii Chapter 1 The Nature
Open access to photonic integration technologies
Open access to photonic integration technologies Academic and Industrial examples of photonic integrated circuits Katarzyna Ławniczuk k.lawniczuk@tue.nl What is photonic integration technology? multiple
AST3 Cameras, a Status Update
AST3 Cameras, a Status Update Astronomy & Astrophysics in Antarctica Aug. 18-21 Xi'an, China Richard Bredthauer, Greg Bredthauer, Kasey Boggs Semiconductor Technology Associates, Inc. 27122 Paseo Espada,
5G Spectrum Sharing. Professor Maziar Nekovee Head of Engineering & Design Co-Director Future Technologies Labs
5G Spectrum Sharing Professor Maziar Nekovee Head of Engineering & Design Co-Director Future Technologies Labs Research Research Structure Structure at Department of Engineering & Design School of Engineering
SM Cirius LM 175/200+ Mbps Ethernet + 16 T1/E1
SM Cirius LM 175/200+ Mbps Ethernet + 16 T1/E1 Split Mount TDM + Ethernet Radio The Cirius LM is a low-cost point-to-point PDH digital microwave radio system for T1/E1 payloads plus Ethernet and meets
CHAPTER 2: THREE DIMENSIONAL TOPOGRAPHICAL MAPPING SYSTEM. Target Object
CHAPTER 2: THREE DIMENSIONAL TOPOGRAPHICAL MAPPING SYSTEM 2.1 Theory and Construction Target Object Laser Projector CCD Camera Host Computer / Image Processor Figure 2.1 Block Diagram of 3D Areal Mapper
TITLE. Chip and Package-Level Wideband EMI Analysis for Mobile DRAM Devices. Jin-Sung Youn (Samsung Electronics)
TITLE Chip and Package-Level Wideband EMI Analysis for Mobile DRAM Devices Jin-Sung Youn (Samsung Electronics) Image Jin-Sung Youn, Jieun Park, Jinwon Kim, Daehee Lee, Sangnam Jeong, Junho Lee, Hyo-Soon
IN-SIGHT 2000 SERIES VISION SENSORS
IN-SIGHT 2000 SERIES VISION SENSORS In-Sight 2000 series vision sensors combine the power of an In-Sight vision system with the simplicity and affordability of a vision sensor. Ideal for solving error-proofing
Wideband Photodiode Receivers
Wideband Photodiode Receivers Features Wide-band analog signal reception Single-mode fiber pigtail High optical return loss Up to 20 GHz bandwidth 1310 nm and 1550 nm sensitivity Applications Antenna remoting