Low threshold, room temperature pulsed and quasi-continuous lasing in optically pumped CdZnTe/ZnTe quantum wells

1993 ◽  
Vol 22 (5) ◽  
pp. 479-484 ◽  
Author(s):  
R. D. Feldman ◽  
T. D. Harris ◽  
J. E. Zucker ◽  
D. Lee ◽  
R. F. Austin ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Room Temperature ◽  
Optically Pumped ◽  
Low Threshold

Molecular Beam Epitaxy of Znl-x Cdx Se/ZnSe Heterostructures And Their Optical Properties

1991 ◽  
Vol 228 ◽  
Author(s):  
H. Luo ◽  
N. Samarth ◽  
J. K. Furdyna ◽  
H. Jeon ◽  
J. Ding ◽  
...  
Keyword(s):  
Optical Properties ◽  
Molecular Beam Epitaxy ◽  
Quantum Wells ◽  
Room Temperature ◽  
Molecular Beam ◽  
Stimulated Emission ◽  
Optically Pumped ◽  
Absorption Coefficients ◽  
Excitonic Absorption ◽  
Lasing Mechanism

ABSTRACTSuperlattices and quantum wells of Znl-xCdxSe/ZnSe, and heterostructures based on ZnSe/CdSe digital alloys have been grown by molecular beam epitaxy (MBE). Their optical properties were studied with particular emphasis on excitonic absorption and photopumped stimulated emission. Excitonic absorption is easily observable up to 400 K, and is characterized by extremely large absorption coefficients (α = 2×105cm−1). Optically pumped lasing action is obtained at room temperature with a typical threshold intensity of 100 kW/cm2. The lasing mechanism in these II-VI quantum wells appears to be quite different from that in the better studied III-V materials: in our case, the onset of stimulated emission occurs before the saturation of the excitonic absorption, and the stimulated emission occurs at an energy lower than that of the excitonic absorption.

Low-threshold laser diodes based on type-II GaInAsSb/GaSb quantum-wells operating at 2.36 [micro sign]m at room temperature

1996 ◽  
Vol 32 (24) ◽  
pp. 2279 ◽  
Author(s):  
A.N. Baranov ◽  
Y. Cuminal ◽  
G. Boissier ◽  
C. Alibert ◽  
A. Joullié
Keyword(s):  
Quantum Wells ◽  
Room Temperature ◽  
Laser Diodes ◽  
Type Ii ◽  
Low Threshold

Optically pumped room temperature low threshold deep UV lasers grown on native AlN substrates

2019 ◽  
Author(s):  
Akhil Raj Kumar Kalapala ◽  
Dong Liu ◽  
Sang June Cho ◽  
Jeongpil Park ◽  
Deyin Zhao ◽  
...  
Keyword(s):  
Room Temperature ◽  
Optically Pumped ◽  
Low Threshold ◽  
Deep Uv ◽  
Uv Lasers

Quasi‐continuous lasing from optically pumped CdZnTe/ZnTe multiple quantum wells at room temperature

1992 ◽  
Vol 60 (6) ◽  
pp. 739-741 ◽  
Author(s):  
D. Lee ◽  
A. M. Johnson ◽  
J. E. Zucker ◽  
C. A. Burrus ◽  
R. D. Feldman ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Room Temperature ◽  
Multiple Quantum Wells ◽  
Multiple Quantum ◽  
Optically Pumped

scholarly journals Optically pumped room temperature low threshold deep UV lasers grown on native AlN substrates

2020 ◽  
Vol 3 (4) ◽  
pp. 19002501-19002506
Author(s):  
Akhil Raj Kumar Kalapala ◽  
◽  
Dong Liu ◽  
Sang June Cho ◽  
Jeongpil Park ◽  
...  
Keyword(s):  
Room Temperature ◽  
Optically Pumped ◽  
Low Threshold ◽  
Deep Uv ◽  
Uv Lasers

Quest for Compact Blue Lasers for Optical Memories

1991 ◽  
Vol 228 ◽  
Author(s):  
R. N. Bhargava
Keyword(s):  
Quantum Wells ◽  
Room Temperature ◽  
Second Harmonic ◽  
Optical Recording ◽  
Blue Laser ◽  
Current Effort ◽  
Gaas Laser ◽  
Low Threshold ◽  
The Right ◽  
P Type

ABSTRACTA short wavelength laser offers unique opportunities in high density optical recording as well as in laser printing. To achieve a compact blue laser, the current effort worldwide is primarily concentrated on achieving well-conducting p-type ZnSe and fabricating quantum well heterostructures so as to achieve a low threshold laser at room temperature. The recent milestone ‘an injection blue laser below room temperature’ gives us confidence that indeed we are on the right path. In photopumped lasers in various II-VI heterostructures, thresholds at room temperature comparable to the theoretical limit have been reported. This not only reinforces that indeed a room temperature injection laser is possible but when combined with earlier electron-beam pumped laser results, a scanned compact laser is also feasible.In recent years several breakthroughs have demonstrated that an infrared emitting GaAs laser can be used to generate blue light through efficient second harmonic generation (SHG) in certain non-linear optical materials. Recent exciting results on SHG of GaAs lasers in KTP grating waveguides resulted in a blue laser with output power in the range of several milliwatts. Alternative schemes such as upconversion lasers and SHG in III-V quantum wells structures are presented.In summary, various efforts to achieve compact blue lasers and their availability in the near future are presented.

scholarly journals Low Threshold Room Temperature Polariton Lasing from Fluorene‐Based Oligomers

2021 ◽  
pp. 2100028
Author(s):  
Mengjie Wei ◽  
Arvydas Ruseckas ◽  
Van T. N. Mai ◽  
Atul Shukla ◽  
Ilene Allison ◽  
...  
Keyword(s):  
Room Temperature ◽  
Low Threshold
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