We experimentally observed a terahertz (THz) radiation of electrically driven 2D electron gas (2DEG) plasmons in AlGaN/AlN/GaN structures at T = 110 K. The grating with a period of 1.0 μm and a filling factor of 0.35 was used to couple electromagnetic radiation out from the plasmonic sample excited in a pulsed regime. The peak power radiated from ungated 2DEG plasmons at a frequency of 5.0 THz under an electric field of 450 V/cm was up to 940 nW. The intensity of the radiation was sufficient to measure spectra with a conventional far-infrared Fourier transform spectrometer. The analysis of the data revealed that the 2DEG plasmon radiation was superimposed with the black-body radiation of the sample and electroluminescence of the impurities. The strategy to reach higher powers of THz emission for practical applications is discussed.
Skip Nav Destination
Electrically driven terahertz radiation of 2DEG plasmons in AlGaN/GaN structures at 110 K temperature
Article navigation
15 May 2017
Research Article|
May 15 2017
Electrically driven terahertz radiation of 2DEG plasmons in AlGaN/GaN structures at 110 K temperature
V. Jakštas;
V. Jakštas
1
Center for Physical Sciences and Technology
, Saulėtekio al. 3, LT-10222 Vilnius, Lithuania
Search for other works by this author on:
I. Grigelionis;
I. Grigelionis
1
Center for Physical Sciences and Technology
, Saulėtekio al. 3, LT-10222 Vilnius, Lithuania
Search for other works by this author on:
V. Janonis;
V. Janonis
1
Center for Physical Sciences and Technology
, Saulėtekio al. 3, LT-10222 Vilnius, Lithuania
Search for other works by this author on:
G. Valušis;
G. Valušis
1
Center for Physical Sciences and Technology
, Saulėtekio al. 3, LT-10222 Vilnius, Lithuania
Search for other works by this author on:
I. Kašalynas;
I. Kašalynas
a)
1
Center for Physical Sciences and Technology
, Saulėtekio al. 3, LT-10222 Vilnius, Lithuania
Search for other works by this author on:
G. Seniutinas;
G. Seniutinas
2
Swinburne University of Technology
, John St. Mail H34, Hawthorn, VIC 3122, Australia
3Melbourne Centre for Nanofabrication,
ANFF
, 151 Wellington Road, Clayton, VIC 3168, Australia
Search for other works by this author on:
S. Juodkazis
;
S. Juodkazis
2
Swinburne University of Technology
, John St. Mail H34, Hawthorn, VIC 3122, Australia
3Melbourne Centre for Nanofabrication,
ANFF
, 151 Wellington Road, Clayton, VIC 3168, Australia
Search for other works by this author on:
P. Prystawko;
P. Prystawko
4
Institute of High Pressure Physics UNIPRESS
, Sokołowska 29/37, 01-142 Warsaw, Poland
Search for other works by this author on:
M. Leszczyński
M. Leszczyński
4
Institute of High Pressure Physics UNIPRESS
, Sokołowska 29/37, 01-142 Warsaw, Poland
Search for other works by this author on:
a)
Author to whom correspondence should be addressed: irmantas.kasalynas@ftmc.lt.
Appl. Phys. Lett. 110, 202101 (2017)
Article history
Received:
January 06 2017
Accepted:
April 28 2017
Citation
V. Jakštas, I. Grigelionis, V. Janonis, G. Valušis, I. Kašalynas, G. Seniutinas, S. Juodkazis, P. Prystawko, M. Leszczyński; Electrically driven terahertz radiation of 2DEG plasmons in AlGaN/GaN structures at 110 K temperature. Appl. Phys. Lett. 15 May 2017; 110 (20): 202101. https://doi.org/10.1063/1.4983286
Download citation file:
Sign in
Don't already have an account? Register
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Sign in via your Institution
Sign in via your InstitutionPay-Per-View Access
$40.00