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Frequency tunable electronic sources working at room temperature in the 1 to 3 THz band

Maestrini, Alain and Mehdi, Imran and Siles, Jose V. and Lin, Robert and Lee, Choonsup and Chattopadhyay, Goutam and Pearson, John and Siegel, Peter (2012) Frequency tunable electronic sources working at room temperature in the 1 to 3 THz band. In: Terahertz Emitters, Receivers, and Applications III. Proceedings of SPIE. No.8496. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 84960F. ISBN 9780819492135. https://resolver.caltech.edu/CaltechAUTHORS:20180731-162730968

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Abstract

Compact, room temperature terahertz sources are much needed in the 1 to 3 THz band for developing multi-pixel heterodyne receivers for astrophysics and planetary science or for building short-range high spatial resolution THz imaging systems able to see through low water content and non metallic materials, smoke or dust for a variety of applications ranging from the inspection of art artifacts to the detection of masked or concealed objects. All solid-sate electronic sources based on a W-band synthesizer followed by a high-power W-band amplifier and a cascade of Schottky diode based THz frequency multipliers are now capable of producing more than 1 mW at 0.9THz, 50 μW at 2 THz and 18 μW at 2.6 THz without the need of any cryogenic system. These sources are frequency agile and have a relative bandwidth of 10 to 15%, limited by the high power W-band amplifiers. The paper will present the latest developments of this technology and its perspective in terms of frequency range, bandwidth and power.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.929654DOIArticle
ORCID:
AuthorORCID
Chattopadhyay, Goutam0000-0001-7942-5025
Siegel, Peter0000-0002-2539-4646
Additional Information:© 2012 Society of Photo-Optical Instrumentation Engineers (SPIE). The research described herein was carried out at the Jet Propulsion Laboratory, California Institute of Technology, USA, under contract with the National Aeronautics and Space Administration and at the Université Pierre et Marie-Curie – Paris 6, Laboratoire d’Etude du Rayonnement et de la Matière en Astrophysique. The authors are grateful for the fabrication of the waveguide blocks by the JPL Space Instruments Shop, in particular Peter Bruneau. The authors also wish to thank JPL Molecular Spectroscopy Laboratory for the THz FTS scans. Copyright 2012. All rights reserved. One of us (JS) is funded by a Fulbright Fellowship.
Funders:
Funding AgencyGrant Number
NASA/JPL/CaltechUNSPECIFIED
Fulbright FoundationUNSPECIFIED
Subject Keywords:Schottky diodes, frequency multipliers, local oscillators, heterodyne receivers
Series Name:Proceedings of SPIE
Issue or Number:8496
Record Number:CaltechAUTHORS:20180731-162730968
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20180731-162730968
Official Citation:Alain Maestrini, Imran Mehdi, José V. Siles, Robert Lin, Choonsup Lee, Goutam Chattopadhyay, John Pearson, Peter Siegel, "Frequency tunable electronic sources working at room temperature in the 1 to 3 THz band", Proc. SPIE 8496, Terahertz Emitters, Receivers, and Applications III, 84960F (15 October 2012); doi: 10.1117/12.929654; https://doi.org/10.1117/12.929654
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:88415
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:01 Aug 2018 14:29
Last Modified:09 Mar 2020 13:19

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