Plasmonic Antireflection Coating for Photoconductive Terahertz Generation

被引：32
|
作者：
Fesharaki, Faezeh [1 ]
Jooshesh, Afshin [1 ]
Bahrami-Yekta, Vahid [1 ]
Mahtab, Mahsa [1 ]
Tiedje, Tom [1 ]
Darcie, Thomas E. [1 ]
Gordon, Reuven [1 ]
机构：
[1] Univ Victoria, Dept Elect & Comp Engn, Victoria, BC V8P 5C2, Canada
来源：
ACS PHOTONICS | 2017年 / 4卷 / 06期
基金：
加拿大自然科学与工程研究理事会;
关键词：
antireflection; nanoantenna; photoconductive; plasmonic; terahertz; TEMPERATURE-GROWN GAAS; RADIATION; ANTENNAS; RESONATORS; EMISSION;
D O I：
10.1021/acsphotonics.7b00410
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Plasmon-enhanced photoconductive antennas allow for improved performance, particularly in below-band-gap absorption devices using low-temperature-grown GaAs. Here we design the plasmonic nanostructures to act as antireflection coatings as well, achieving below 10% reflection at 1570 nm wavelength in an optimized device. Quantitative agreement is seen between experiment and theory. Terahertz emission field amplitudes demonstrate 18 times enhancement compared to that of a conventional terahertz photoconductive antenna on the same substrate.
引用
收藏
页码：1350 / 1354
页数：5
相关论文
共 50 条
  • [31] Generation of ultrabroadband terahertz radiation with a photoconductive emitter
    Tani, M
    Nakajima, M
    Kono, S
    Sakai, K
    2002 IEEE/LEOS ANNUAL MEETING CONFERENCE PROCEEDINGS, VOLS 1 AND 2, 2002, : 532 - 533
  • [32] Intense terahertz generation from photoconductive antennas
    Elchin ISGANDAROV
    Xavier ROPAGNOL
    Mangaljit SINGH
    Tsuneyuki OZAKI
    Frontiers of Optoelectronics, 2021, 14 (01) : 64 - 93
  • [33] EFFECT OF ANTIREFLECTION COATING ON THE PERFORMANCE OF 0.1EV HGCDTE PHOTOCONDUCTIVE DETECTORS
    GOPAL, V
    INFRARED PHYSICS, 1983, 23 (06): : 307 - 310
  • [34] Generation of high power pulsed terahertz radiation using a plasmonic photoconductive emitter array with logarithmic spiral antennas
    Berry, Christopher W.
    Hashemi, Mohammad R.
    Jarrahi, Mona
    APPLIED PHYSICS LETTERS, 2014, 104 (08)
  • [35] Computational modeling of plasmonic thin-film terahertz photoconductive antennas
    Burford, Nathan
    El-Shenawee, Magda
    JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 2016, 33 (04) : 748 - 759
  • [36] Tunable Plasmonic Properties and Absorption Enhancement in Terahertz Photoconductive Antenna Based on Optimized Plasmonic Nanostructures
    Tatjana Gric
    Andrei Gorodetsky
    Aleksej Trofimov
    Edik Rafailov
    Journal of Infrared, Millimeter, and Terahertz Waves, 2018, 39 : 1028 - 1038
  • [37] 1550 nm Large-Area Plasmonic Photoconductive Terahertz Sources
    Yardimci, Nezih T.
    Jarrahi, Mona
    2016 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO), 2016,
  • [38] Fabrication and Characterization of Plasmonic Thin-Film Terahertz Photoconductive Antenna
    Burford, Nathan M.
    Evans, Michael J.
    El-Shenawee, Magda
    2018 IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION & USNC/URSI NATIONAL RADIO SCIENCE MEETING, 2018, : 803 - 804
  • [39] Simulation, Fabrication and Measurement of Plasmonic-Enhanced Terahertz Photoconductive Antenna
    Burford, Nathan
    El-Shenawee, Magda
    TERAHERTZ, RF, MILLIMETER, AND SUBMILLIMETER-WAVE TECHNOLOGY AND APPLICATIONS IX, 2016, 9747
  • [40] Terahertz Detection Sensitivity Enhancement by Incorporating Plasmonic Gratings in Photoconductive Detectors
    Wang, Ning
    Berr, Christopher W.
    Hashemi, Mohammad R.
    Jarrahi, Mona
    2013 38TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ), 2013,
12345