scholarly journals An antipodal Vivaldi antenna for improved far-field properties and polarization manipulation of broadband terahertz quantum cascade lasers

2020 ◽  
Vol 116 (16) ◽  
pp. 161105
Author(s):  
U. Senica ◽  
E. Mavrona ◽  
T. Olariu ◽  
A. Forrer ◽  
M. Shahmohammadi ◽  
...  
Keyword(s):  
Quantum Cascade Lasers ◽  
Far Field ◽  
Quantum Cascade ◽  
Vivaldi Antenna ◽  
Cascade Lasers ◽  
Broadband Terahertz

Effect of transverse mode structure on the far field pattern of metal-metal terahertz quantum cascade lasers

2008 ◽  
Vol 104 (12) ◽  
pp. 124513 ◽  
Author(s):  
P. Gellie ◽  
W. Maineult ◽  
A. Andronico ◽  
G. Leo ◽  
C. Sirtori ◽  
...  
Keyword(s):  
Quantum Cascade Lasers ◽  
Transverse Mode ◽  
Field Pattern ◽  
Far Field ◽  
Mode Structure ◽  
Quantum Cascade ◽  
Metal Metal ◽  
Far Field Pattern ◽  
Cascade Lasers

scholarly journals Multiple lobes in the far-field distribution of terahertz quantum-cascade lasers due to self-interference

AIP Advances ◽  
2016 ◽  
Vol 6 (6) ◽  
pp. 065104 ◽  
Author(s):  
B. Röben ◽  
M. Wienold ◽  
L. Schrottke ◽  
H. T. Grahn
Keyword(s):  
Field Distribution ◽  
Quantum Cascade Lasers ◽  
Far Field ◽  
Quantum Cascade ◽  
Cascade Lasers

Transversely superimposed gratings for narrow far-field terahertz surface emission of nonlinear quantum cascade lasers

2017 ◽  
Vol 57 (01) ◽  
pp. 1 ◽  
Author(s):  
Frederic Demmerle ◽  
Wolfhard Oberhausen ◽  
Dominik Burghart ◽  
Alexander Wolf ◽  
Ganpath Kumar Veerabathran ◽  
...  
Keyword(s):  
Quantum Cascade Lasers ◽  
Far Field ◽  
Quantum Cascade ◽  
Surface Emission ◽  
Nonlinear Quantum ◽  
Cascade Lasers

scholarly journals Optical polarization shift in beams emitted by quantum cascade lasers

2019 ◽  
Vol 51 (10) ◽  
Author(s):  
Emilia Pruszyńska-Karbownik ◽  
Piotr Gutowski ◽  
Piotr Karbownik
Keyword(s):  
Quantum Cascade Lasers ◽  
Polarized Light ◽  
Transverse Mode ◽  
Far Field ◽  
Mode Structure ◽  
Mid Infrared ◽  
Mode Change ◽  
Quantum Cascade ◽  
Transversal Mode ◽  
Cascade Lasers

Abstract In this paper, we present experimental results of current-induced polarization change and transverse mode change in mid-infrared quantum cascade lasers. The polarization of laser beam was determined by measuring of far-field distributions of polarization projection on the linear polarization basis. The measured amount of TE-polarized light is associated with transversal mode structure, which was determined based on the far-field power distributions. The TE polarized light contribution in the beams varies from 6 to 19%. This quantity is anti-correlated to the fundamental transverse mode contribution.

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