Cavity-based photoconductive sources for real-time terahertz imaging

被引：13

作者：

Hawecker, J. ^{[1
]}

Pistore, V ^{[1
]}

Minasyan, A. ^{[2
]}

Maussang, K. ^{[1
,4
]}

Palomo, J. ^{[1
]}

Sagnes, I ^{[3
]}

Manceau, J-M ^{[3
]}

Colombelli, R. ^{[3
]}

Tignon, J. ^{[1
]}

Mangeney, J. ^{[1
]}

Dhillon, S. S. ^{[1
]}

机构：

[1] Univ Paris, Sorbonne Univ, Univ PSL, Lab Phys,Ecole Normale Super,ENS,CNRS, F-75005 Paris, France

[2] i2S, 28-30 Rue Jean Perrin, F-33608 Pessac, France

[3] Univ Paris Saclay, CNRS UMR 9001, Ctr Nanosci & Nanotechnol C2N, F-91120 Palaiseau, France

[4] Univ Montpellier, CNRS UMR 5214, Inst Elect & Syst, 860 Rue St Priest, F-34095 Montpellier 5, France

来源：

PHOTONICS RESEARCH | 2020年 / 8卷 / 06期

基金：

欧盟地平线“2020”;

关键词：

Metal insulator boundaries - Photoconductive switches;

D O I：

10.1364/PRJ.388219

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Optically driven photoconductive switches are one of the predominant sources currently used in terahertz imaging systems. However, owing to their low average powers, only raster-based images can be taken, resulting in slow acquisition. In this work, we show that by placing a photoconductive switch within a cavity, we are able to generate absolute average THz powers of 181 mu W with the frequency of the THz emission centered at 1.5 THz-specifications ideally adapted to applications such as non-destructive imaging. The cavity is based on a metal-insulator-metal structure that permits an enhancement of the average power by almost 1 order of magnitude compared to a standard structure, while conserving a broadband spectral response. We demonstrate proof-of-principle real-time imaging using this source, with the broadband spectrum permitting to eliminate strong diffraction artifacts. (C) 2020 Chinese Laser Press

引用

页码：858 / 863

页数：6

共 19 条

[1] High-speed THz spectroscopic imaging at ten kilohertz pixel rate with amplitude and phase contrast [J].

Beck, M. ;

Ploetzing, T. ;

Maussang, K. ;

Palomo, J. ;

Colombelli, R. ;

Sagnes, I. ;

Mangeney, J. ;

Tignon, J. ;

Dhillon, S. S. ;

Klatt, G. ;

Bartels, A. .

OPTICS EXPRESS, 2019, 27 (08) :10866-10872

[2] Real-time imaging using a 2.8 THz quantum cascade laser and uncooled infrared micrometer camera [J].

Behnken, Barry N. ;

Karunasiri, Gamani ;

Chamberlin, Danielle R. ;

Robrish, Peter R. ;

Faist, Jerome .

OPTICS LETTERS, 2008, 33 (05) :440-442

[3] Generation of high power pulsed terahertz radiation using a plasmonic photoconductive emitter array with logarithmic spiral antennas [J].

Berry, Christopher W. ;

Hashemi, Mohammad R. ;

Jarrahi, Mona .

APPLIED PHYSICS LETTERS, 2014, 104 (08)

[4] Review of terahertz photoconductive antenna technology [J].

Burford, Nathan M. ;

El-Shenawee, Magda O. .

OPTICAL ENGINEERING, 2017, 56 (01)

[5] Opening the Terahertz window with integrated diode circuits [J].

Crowe, TW ;

Bishop, WL ;

Porterfield, DW ;

Hesler, JL ;

Weikle, RM .

IEEE JOURNAL OF SOLID-STATE CIRCUITS, 2005, 40 (10) :2104-2110

[6] The 2017 terahertz science and technology roadmap [J].

Dhillon, S. S. ;

Vitiello, M. S. ;

Linfield, E. H. ;

Davies, A. G. ;

Hoffmann, Matthias C. ;

Booske, John ;

Paoloni, Claudio ;

Gensch, M. ;

Weightman, P. ;

Williams, G. P. ;

Castro-Camus, E. ;

Cumming, D. R. S. ;

Simoens, F. ;

Escorcia-Carranza, I. ;

Grant, J. ;

Lucyszyn, Stepan ;

Kuwata-Gonokami, Makoto ;

Konishi, Kuniaki ;

Koch, Martin ;

Schmuttenmaer, Charles A. ;

Cocker, Tyler L. ;

Huber, Rupert ;

Markelz, A. G. ;

Taylor, Z. D. ;

Wallace, Vincent P. ;

Zeitler, J. Axel ;

Sibik, Juraj ;

Korter, Timothy M. ;

Ellison, B. ;

Rea, S. ;

Goldsmith, P. ;

Cooper, Ken B. ;

Appleby, Roger ;

Pardo, D. ;

Huggard, P. G. ;

Krozer, V. ;

Shams, Haymen ;

Fice, Martyn ;

Renaud, Cyril ;

Seeds, Alwyn ;

Stoehr, Andreas ;

Naftaly, Mira ;

Ridler, Nick ;

Clarke, Roland ;

Cunningham, John E. ;

Johnston, Michael B. .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2017, 50 (04)

[7] 64 μW pulsed terahertz emission from growth optimized InGaAs/InAlAs heterostructures with separated photoconductive and trapping regions [J].

Dietz, Roman J. B. ;

Globisch, Bjoern ;

Gerhard, Marina ;

Velauthapillai, Ajanthkrishna ;

Stanze, Dennis ;

Roehle, Helmut ;

Koch, Martin ;

Goebel, Thorsten ;

Schell, Martin .

APPLIED PHYSICS LETTERS, 2013, 103 (06)

[8] High-intensity terahertz radiation from a microstructured large-area photoconductor [J].

Dreyhaupt, A ;

Winnerl, S ;

Dekorsy, T ;

Helm, M .

APPLIED PHYSICS LETTERS, 2005, 86 (12) :1-3

[9] Absolute terahertz power measurement of a time-domain spectroscopy system [J].

Globisch, Bjoern ;

Dietz, Roman J. B. ;

Goebel, Thorsten ;

Schell, Martin ;

Bohmeyer, Werner ;

Mueller, Ralf ;

Steiger, Andreas .

OPTICS LETTERS, 2015, 40 (15) :3544-3547

[10] Toward real-time terahertz imaging [J].

Guerboukha, Hichem ;

Nallappan, Kathirvel ;

Skorobogatiy, Maksim .

ADVANCES IN OPTICS AND PHOTONICS, 2018, 10 (04) :843-938

← 1 2 →