Review of terahertz photoconductive antenna technology
TLDR
The development of THz PCA technology through the last 30 years is reviewed, the key modalities of improving device performance are identified, and literature is reviewed to summarize the progress made in these areas.Abstract:
Photoconductive antennas (PCAs) have been extensively utilized for the generation and detection of both pulsed broadband and single frequency continuous wave terahertz (THz) band radiation. These devices form the basis of many THz imaging and spectroscopy systems, which have demonstrated promising applications in various industries and research fields. The development of THz PCA technology through the last 30 years is reviewed. The key modalities of improving device performance are identified, and literature is reviewed to summarize the progress made in these areas. The goal of this review is to provide a collection of all relevant literature to bring researchers up to date on the current state and remaining challenges of THz PCA technology.read more
Citations
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Journal ArticleDOI
6G and Beyond: The Future of Wireless Communications Systems
TL;DR: Significant technological breakthroughs to achieve connectivity goals within 6G include: a network operating at the THz band with much wider spectrum resources, intelligent communication environments that enable a wireless propagation environment with active signal transmission and reception, and pervasive artificial intelligence.
Journal ArticleDOI
Tutorial: An introduction to terahertz time domain spectroscopy (THz-TDS)
TL;DR: This tutorial explains how THz-TDS measurements can be used to identify materials, determine complex refractive indices (phase delay and absorption), and extract conductivity and explores the basic concepts of TDS.
Proceedings Article
Saturation properties of large-aperture photoconducting antennas
TL;DR: In this article, the saturation properties and power scaling of large-aperture planar photoconducting antennas with different semiconductor materials have been discussed, and the amplitude of the radiated electric field saturates at a value comparable to the bias field in agreement with a simple model of the radiation.
Journal ArticleDOI
Terahertz biophotonics as a tool for studies of dielectric and spectral properties of biological tissues and liquids
O. A. Smolyanskaya,Nikita V. Chernomyrdin,Nikita V. Chernomyrdin,Nikita V. Chernomyrdin,A. A. Konovko,Kirill I. Zaytsev,Kirill I. Zaytsev,Kirill I. Zaytsev,Ilya A. Ozheredov,Olga P. Cherkasova,Olga P. Cherkasova,Maxim Nazarov,Jean-Paul Guillet,Sergei A. Kozlov,Yu. V. Kistenev,Jean-Louis Coutaz,Patrick Mounaix,Vladimir L. Vaks,Joo-Hiuk Son,Hwayeong Cheon,Vincent P. Wallace,Yu. Feldman,Ivan Popov,Anna N. Yaroslavsky,Alexander P. Shkurinov,Alexander P. Shkurinov,Valery V. Tuchin +26 more
TL;DR: In this article, the authors describe the dielectric properties of biological solutions and liquids in the context of terahertz (THz) biophotonics and discuss the methods of sub-wavelength resolution and the problem of THz wave delivery to hard to access tissues and internal organs.
Journal ArticleDOI
Terahertz radiation detectors: the state-of-the-art
TL;DR: In this paper, the authors discuss the development and exploitation of THz radiation detectors in human activity applications and discuss the operation conditions of the THz detectors and their upper limit performance.
References
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Journal ArticleDOI
Plasmonics for improved photovoltaic devices
Harry A. Atwater,Albert Polman +1 more
TL;DR: Recent advances at the intersection of plasmonics and photovoltaics are surveyed and an outlook on the future of solar cells based on these principles is offered.
Journal ArticleDOI
Terahertz spectroscopy and imaging – Modern techniques and applications
TL;DR: The terahertz time-domain spectroscopy (THz-TDS) as discussed by the authors is a new spectroscopic technique based on coherent and time-resolved detection of the electric field of ultrashort radiation bursts.
Journal ArticleDOI
THz imaging and sensing for security applications—explosives, weapons and drugs
John F. Federici,Brian Schulkin,Feng Huang,Dale E. Gary,Robert Barat,Filipe Oliveira,David Zimdars +6 more
TL;DR: In this article, stand-off interferometric imaging and sensing for the detection of explosives, weapons and drugs is emphasized, and future prospects of terahertz technology are discussed.
Journal ArticleDOI
Plasmonic solar cells
Kylie R. Catchpole,Albert Polman +1 more
TL;DR: The scattering from metal nanoparticles near their localized plasmon resonance is a promising way of increasing the light absorption in thin-film solar cells and experimental and theoretical progress is reviewed.
Journal ArticleDOI
Picosecond photoconducting Hertzian dipoles
TL;DR: In this article, the generation transmission and detection of extremely rapid electromagnetic pulses have been achieved using fast photoconducting materials as time-varying Hertzian dipoles, which overcomes many of the limitations imposed by transmission line structures, and due to its jitter free behavior and open geometry is ideally suited for transient electromagnetic measurements of materials.
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