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The papers included in this volume were part of the technical conference cited on the cover and title page. Papers were selected and subject to review by the editors and conference program committee. Some conference presentations may not be available for publication. The papers published in these proceedings reflect the work and thoughts of the authors and are published herein as submitted. The publisher is not responsible for the validity of the information or for any outcomes resulting from reliance thereon. Please use the following format to cite material from this book: Author(s), “Title of Paper,” in Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications VII, edited by Laurence P. Sadwick, Créidhe M. O’Sullivan, Proceedings of SPIE Vol. 8985 (SPIE, Bellingham, WA, 2014) Article CID Number. ISSN: 0277-786X ISBN: 9780819498984 Published by SPIE P.O. Box 10, Bellingham, Washington 98227-0010 USA Telephone +1 360 676 3290 (Pacific Time) • Fax +1 360 647 1445 Copyright © 2014, Society of Photo-Optical Instrumentation Engineers. Copying of material in this book for internal or personal use, or for the internal or personal use of specific clients, beyond the fair use provisions granted by the U.S. Copyright Law is authorized by SPIE subject to payment of copying fees. The Transactional Reporting Service base fee for this volume is $18.00 per article (or portion thereof), which should be paid directly to the Copyright Clearance Center (CCC), 222 Rosewood Drive, Danvers, MA 01923. Payment may also be made electronically through CCC Online at copyright.com. Other copying for republication, resale, advertising or promotion, or any form of systematic or multiple reproduction of any material in this book is prohibited except with permission in writing from the publisher. The CCC fee code is 0277-786X/14/$18.00. Printed in the United States of America. Publication of record for individual papers is online in the SPIE Digital Library. Paper Numbering: Proceedings of SPIE follow an e-First publication model, with papers published first online and then in print and on CD-ROM. Papers are published as they are submitted and meet publication criteria. A unique, consistent, permanent citation identifier (CID) number is assigned to each article at the time of the first publication. Utilization of CIDs allows articles to be fully citable as soon as they are published online, and connects the same identifier to all online, print, and electronic versions of the publication. SPIE uses a six-digit CID article numbering system in which:
The CID Number appears on each page of the manuscript. The complete citation is used on the first page, and an abbreviated version on subsequent pages. Numbers in the index correspond to the last two digits of the six-digit CID Number. Conference CommitteeSymposium Chairs
Symposium Co-chairs Program Track Chair Conference Chairs
Conference Program Committee
Session Chairs
IntroductionThe 2014 Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications VI Conference was divided into eleven sessions reflecting specific categories as follows: Session 1 Terahertz Sources I, Session 2 Terahertz Sources II, Session 3 Terahertz Sources III, Session 4 New Developments in THz, RF, Millimeter-Waves, and Sub-Milimeter Waves I, Session 5 Spectroscopy I, Session 6 Spectroscopy II, Session 7 Detectors, Session 8 New Developments in THz, RF, Millimeter-Waves, and Sub-Millimeter Waves II, Session 9 Terahertz, RF, Millimeter-Wave, and Sub-Millimeter-Wave Passive Components, Session 10 RF, Sub-Millimeter-Wave, and Millimeter-Wave Sources, and Session 11 New Developments in THz, RF, Millimeter-Waves, and Sub-Millimeter Waves III and a poster session. Session 1 began with an invited talk presented by Dr. Matthieu Martin from Professor Elliott Brown’s research group on ErAs:GaAs extrinsic photoconductivity: a new alternative for 1550-nm-driven THz sources followed by a talk on Plasmonic photoconductive terahertz optoelectronics presented by Professor Mona Jarrahi, with additional talks on Narrowband continuous-wave terahertz generation and imaging, and Nonlinear optical resonators for tunable THz emission. Session 2 began with an invited talk by Dr. Kyung Hyun Park on Photonic devices for tunable continuous-wave terahertz generation and detection followed by a talk on Silicon gradient index lens for THz pulse extraction with additional talks on A cost-effective terahertz continuous-wave system based on a compact dual-mode laser diode, Non-contact thickness, with the final talk of the session on conductivity measurement using a continuous-wave terahertz spectrometer based on a 1.3 μm dual-mode laser. Session 3 began with a talk on Non-contact probes for THz-integrated devices based on fiber-coupled photomixers, followed by talks that included Terahertz emission in organic crystals pumped by conventional laser wavelength, Generation of broadband THz pulses (1-14 THz) with organic crystal DSTMS pumped by compact fs fiber lasers and Direct observation of terahertz photoluminescence from multi-layer epitaxial graphene on SiC under excitation by a mid-IR quantum cascade laser concluding with a talk on Confinement loss scaling law analysis in tube lattice fibers for terahertz applications. Session 4 began with an invited talk on Optical design for translation of THz medical imaging technology by Dr. Zachary Taylor followed by talks on High-speed and broadband RF spectrum analyzer based on spectral hole burning in rare-earth-ion doped crystal, 10,000-fold field-enhancement for millimeter-wave transmission through one-nanometer gaps, and ending the session with a talk on Terahertz polarization imaging for colon cancer detection. Session 5 began with a talk on Terahertz plasmonic waveguide sensing based on metal rod array structures followed by talks on Doping profile recognition in silicon using terahertz time-domain spectroscopy, Widening the span of GHz spacing optical frequency comb by increasing the pulse-shortening rate in RHML fiber lasers and concluding with a talk on Innovative evaluation methods for terahertz-spectra by combining different chemometric tools Session 6 began with a talk on the Design and engineering of organic molecules for customizable Terahertz tags, Terahertz spectroscopy of concrete for evaluating the critical hydration level, Compact and reconfigurable fiber-based terahertz spectrometer at 1550 nm, and concluding with Terahertz selective and reversible volatile vapor detection using micro-porous polymer structure. Session 7 began with a talk on Broadband monopole optical nano-antennas followed by talks that included Ultrabroadband phased-array radio frequency (RF) receivers based on optical techniques, Nb5N6 microbolometer array for a compact THz imaging system, and concluded with a talk on High-performance room-temperature THz nanodetectors with a narrowband antenna. Session 8 began with a talk on Active metasurfaces, followed by talks on Nonreciprocity and gyromagnetically-induced transparency of metasurfaces, RF-photonic wideband measurements of energetic pulses on NIF enhanced by compressive sensing algorithms, Terahertz applications: trends and challenges, RF-wave generation using external cavity laser diodes frequency-stabilized to single optical cavity by using orthogonal polarized modes, and concluded with a talk on Vertical transitions between transmission lines and waveguides in multilayer liquid crystal polymer (LCP) substrates. Session 9 began with a talk on Comparison analysis of microwave photonic filter using SOI microring and microdisk resonators, followed by talks on Techniques for the modelling of QUBIC: a next-generation quasi-optical bolometric interferometer for cosmology, Dual-frequency laser harmonic phase locking: Ultra-narrow line width of an optically carried signal at 300 GHz and concluded with a talk on Dual-frequency characterization of bending loss in hollow flexible terahertz waveguides. Session 10 began with a talk on A widely tunable narrow linewidth RF source utilizing an integrated heterogeneous photonic module, followed by talks on A wide bandwidth analog front-end circuit for 60-GHz wireless communication receiver, Photonic generation of continuously-tunable microwave signals exploiting two tunable external-cavity lasers based on a polymer Bragg grating, Continuously-tunable microwave photonic filter based on a multiwavelength fiber laser incorporating polarization-differential time delay and nonlinear polarization rotation and concluded with a talk on On the metrological performances of optoelectronic oscillators based on whispering gallery mode resonators. Session 11 began with a talk on Graphene-based optical modulator realized in metamaterial split-ring resonators operating in the THz frequency range, and continued with a talk on Polymeric waveguide components for THz quantum cascade laser outcoupling, Enhanced transmission and beam confinement using bullseye plasmonic lenses at THz frequencies, and concluded with a talk on An optically-controlled microwave phase stabilizer based on polarization interference technique using semiconductor optical amplifier. There were also a number of excellent poster presentations at this conference. As in prior Terahertz Technology and Applications Conferences, these papers represent a cross section of much of the research work that is being pursued in the technically challenging terahertz spectral region. In the prior seven years of the Proceedings of this conference (Conferences 6472, 6893 7215, 7601, 7938, and 8621, 8624, respectively), we (including Dr. Kurt Linden) presented a list of recent technical articles describing significant advances in the terahertz technology. This year, for the interested reader, we also include a list that points to a rather extensive and growing database on the terahertz absorption characteristics of a large number of chemicals given on the website www.thzdb.org. That website, in turn, provides links to related terahertz technology database websites as shown in Table 1. Table 1.List of terahertz technology database websites as found at www.thzdb.org
In the last five years’ introduction to SPIE Proceedings, Volumes 6472, 6893, 7215, 7601, 7938, respectively, two tables were included, one summarizing the more common terahertz radiation sources, and the other summarizing the more common terahertz detector types. For the interest of the general reader we again include these tables without updates other than to note that recent advancements in vacuum electronics BWOs coupled with solid state multipliers have now produced usable power above 2 THz and that devices such as quantum cascade lasers continue to make improvements that encroach upon established high power sources such as carbon dioxide lasers. Due to such advancements, any values listed in Tables 2 and 3 are likely to be bested by new records in a very short time period; however the sources and detectors listed in Tables 2 and 3 still comprise the majority of those used in the THz regime. Readers of this volume may send additions and enhancements to these tables so that future volumes can continue to provide readers with relevant information on the availability of terahertz sources and detectors. Such suggestions can be sent to sadwick@innosystech.com. Table 2.Summary of common terahertz sources
Table 3.Summary of common terahertz radiation detectors
Laurence P. Sadwick Créidhe M. O’Sullivan |
