Toward Peltier-cooled mid-infrared HgCdTe lasers: Analyzing the temperature quenching of stimulated emission at ∼6 μm wavelength from HgCdTe quantum wells

2021 ◽  
Vol 130 (21) ◽  
pp. 214302
Author(s):  
K. E. Kudryavtsev ◽  
V. V. Rumyantsev ◽  
V. V. Utochkin ◽  
M. A. Fadeev ◽  
V. Ya. Aleshkin ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Stimulated Emission ◽  
Temperature Quenching ◽  
Mid Infrared

Spontaneous and Stimulated Intersubband Emission Under Optical Pumping

1996 ◽  
Vol 450 ◽  
Author(s):  
P. Boucaud ◽  
S. Sauvage ◽  
O. Gauthier-Lafaye ◽  
Z. Moussa ◽  
F.-H. Julien ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Free Electron Laser ◽  
Population Inversion ◽  
Laser Emission ◽  
Optical Pumping ◽  
Stimulated Emission ◽  
Mid Infrared ◽  
Asymmetric Quantum ◽  
Waveguide Length ◽  
Subband Energy

ABSTRACTWe have investigated the mid-infrared spontaneous and stimulated emission between confined subbands in the conduction band of GaAs/AlGaAs quantum wells. The carriers which give rise to the intersubband emission are excited in the upper subbands using an intersubband optical pumping in coupled asymmetric quantum wells. The quantum wells are designed using phonon engineering in order to obtain population inversion between the second and first excited subband. This is obtained by adjusting the subband energy spacing between E2 and E1 close to the optical phonon energy which in turn allows an efficient relaxation. We have first observed intersubband spontaneous emission between E3 and E2 at 14 μm using an intersubband pumping with a CO2 laser in resonance with the E1-E3 transition. In a second set of experiments, the quantum wells are embedded in an infrared waveguide. We have measured the stimulated intersubband gain using a picosecond two-color free electron laser. The first color bleaches the E1-E3 transition and provides the population inversion. The intersubband stimulated gain is measured versus the waveguide length and photon energy. Stimulated gains ≈ 80 cm−1 are reported thus demonstrating that laser emission under optical pumping appears feasible in optimized structures. Finally, we show that intersubband emission can also be observed in quantum wells using an interband optical pumping.

Light Emission Properties of GaN-Based Double Heterostructures and Quantum Wells

1995 ◽  
Vol 395 ◽  
Author(s):  
D.A.S. Loeber ◽  
J.M. Redwing ◽  
N.G. Anderson ◽  
M.A. Tischler
Keyword(s):  
Quantum Well ◽  
Quantum Wells ◽  
Stimulated Emission ◽  
Pump Light ◽  
Band Edge Emission ◽  
Emission Characteristics ◽  
Nitrogen Laser ◽  
Edge Emission ◽  
Edge Luminescence ◽  
Double Heterostructures

ABSTRACTEdge emission characteristics of optically pumped GaN-AlGaN double heterostructures and quantum wells are examined. The samples, which were grown by metalorganic vapor phase epitaxy, are photoexcited with light from a pulsed nitrogen laser. The pump light is focused to a narrow stripe on the sample surface, oriented perpendicular to a cleaved edge, and the edge luminescence is collected and analyzed. We first compare emission characteristics of highly excited GaN-AlGaN double heterostructures grown simultaneously on SiC and sapphire substrates. Polarization resolved spectral properties of edge luminescence from both structures is studied as a function of pump intensity and excitation stripe length. Characteristics indicative of stimulated emission are observed, particularly in the sample grown on SiC. We then present results demonstrating laser emission from a GaN-AlGaN separate-confinement quantum-well heterostructure. At high pump intensities, band edge emission from the quantum well exhibits five narrow (∼1 Å) modes which are evenly spaced by 10Å to within the resolution of the spectrometer. This represents the first demonstration of laser action in a GaN-based quantum-well structure.

Mid-infrared phase modulation by intersubband transitions in quantum wells

1992 ◽  
Vol 39 (11) ◽  
pp. 2646
Author(s):  
E.B. Dupont ◽  
D. Delacourt ◽  
M. Papuchon
Keyword(s):  
Quantum Wells ◽  
Phase Modulation ◽  
Intersubband Transitions ◽  
Mid Infrared

Ultraviolet Stimulated Emission From Optically Pumped AlGaN/AlGaN Multiple Quantum Wells on Pulsed Laterally Overgrown $a$-Plane GaN

2011 ◽  
Vol 4 (8) ◽  
pp. 082103 ◽  
Author(s):  
Mohamed Lachab ◽  
Krishnan Balakrishnan ◽  
Bin Zhang ◽  
Joe Dion ◽  
Qhalid Fareed ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Stimulated Emission ◽  
Multiple Quantum Wells ◽  
Multiple Quantum ◽  
Optically Pumped

Evaluation of internal quantum efficiency and stimulated emission characteristics in AlGaN-based multiple quantum wells

2021 ◽  
Author(s):  
Yoichi Yamada ◽  
Hideaki Murotani ◽  
Noritoshi Maeda ◽  
Muhammad Ajmal Khan ◽  
Masafumi JO ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Quantum Efficiency ◽  
Internal Quantum Efficiency ◽  
Stimulated Emission ◽  
Multiple Quantum Wells ◽  
Emission Characteristics ◽  
Multiple Quantum

scholarly journals Mid-infrared photoluminescence from structures with InAs/GaSb type II quantum wells

2015 ◽  
Vol 643 ◽  
pp. 012078 ◽  
Author(s):  
A V Selivanov ◽  
I S Makhov ◽  
V Yu Panevin ◽  
A N Sofronov ◽  
D A Firsov ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Type Ii ◽  
Mid Infrared ◽  
Type Ii Quantum Wells

Intersubband mid-infrared emission in optically pumped quantum wells

1996 ◽  
Vol 19 (1) ◽  
pp. 69-79 ◽  
Author(s):  
F.H. Julien ◽  
Z. Moussa ◽  
P. Boucaud ◽  
Y. Lavon ◽  
A. Sa'ar ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Infrared Emission ◽  
Optically Pumped ◽  
Mid Infrared

Mid-Infrared Intersubband Emission and Lasing in Optically Pumped Coupled Quantum Wells Structures

1998 ◽  
pp. 30-36
Author(s):  
Yoav Lavon ◽  
Amir Sa’ar ◽  
Francois H. Julien ◽  
Jean-Pierre Leburton ◽  
Richard Planel
Keyword(s):  
Quantum Wells ◽  
Optically Pumped ◽  
Coupled Quantum Wells ◽  
Mid Infrared

Carrier loss mechanisms in type II quantum wells for the active region of GaSb-based mid-infrared interband cascade lasers

2011 ◽  
Vol 33 (11) ◽  
pp. 1817-1819 ◽  
Author(s):  
G. Sęk ◽  
F. Janiak ◽  
M. Motyka ◽  
K. Ryczko ◽  
J. Misiewicz ◽  
...  
Keyword(s):  
Active Region ◽  
Quantum Wells ◽  
Type Ii ◽  
Mid Infrared ◽  
Type Ii Quantum Wells ◽  
Interband Cascade Lasers ◽  
Cascade Lasers ◽  
Loss Mechanisms

Ultraviolet Stimulated Emission in GaN/AlGaN Multiple Quantum Wells

1998 ◽  
Vol 264-268 ◽  
pp. 1433-1436
Author(s):  
L. Calcagnile ◽  
G. Coli ◽  
D. Rinaldi ◽  
R. Cingolani ◽  
H. Tang ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Stimulated Emission ◽  
Multiple Quantum Wells ◽  
Multiple Quantum
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