Green laser emission from monolithic II-VI-based pillar microcavities near room temperature

2008 ◽  
Vol 92 (3) ◽  
pp. 031101 ◽  
Author(s):  
Carsten Kruse ◽  
Henning Lohmeyer ◽  
Kathrin Sebald ◽  
Jürgen Gutowski ◽  
Detlef Hommel ◽  
...  
Keyword(s):  
Room Temperature ◽  
Laser Emission ◽  
Green Laser

scholarly journals Room‐temperature green laser emission of Er:LiYF4

1993 ◽  
Vol 63 (6) ◽  
pp. 729-730 ◽  
Author(s):  
R. Brede ◽  
T. Danger ◽  
E. Heumann ◽  
G. Huber ◽  
B. Chai
Keyword(s):  
Room Temperature ◽  
Laser Emission ◽  
Green Laser

scholarly journals Luminescence from Droplet-Etched GaAs Quantum Dots at and Close to Room Temperature

Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 690
Author(s):  
Leonardo Ranasinghe ◽  
Christian Heyn ◽  
Kristian Deneke ◽  
Michael Zocher ◽  
Roman Korneev ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Penetration Depth ◽  
Gaas Substrate ◽  
Room Temperature ◽  
Green Laser ◽  
Significant Loss ◽  
Blue Laser ◽  
Ambient Conditions ◽  
Thermal Escape ◽  
Intensity Loss

Epitaxially grown quantum dots (QDs) are established as quantum emitters for quantum information technology, but their operation under ambient conditions remains a challenge. Therefore, we study photoluminescence (PL) emission at and close to room temperature from self-assembled strain-free GaAs quantum dots (QDs) in refilled AlGaAs nanoholes on (001)GaAs substrate. Two major obstacles for room temperature operation are observed. The first is a strong radiative background from the GaAs substrate and the second a significant loss of intensity by more than four orders of magnitude between liquid helium and room temperature. We discuss results obtained on three different sample designs and two excitation wavelengths. The PL measurements are performed at room temperature and at T = 200 K, which is obtained using an inexpensive thermoelectric cooler. An optimized sample with an AlGaAs barrier layer thicker than the penetration depth of the exciting green laser light (532 nm) demonstrates clear QD peaks already at room temperature. Samples with thin AlGaAs layers show room temperature emission from the QDs when a blue laser (405 nm) with a reduced optical penetration depth is used for excitation. A model and a fit to the experimental behavior identify dissociation of excitons in the barrier below T = 100 K and thermal escape of excitons from QDs above T = 160 K as the central processes causing PL-intensity loss.

Room temperature SrAlF5:Cr3+ laser emission tunable from 825 nm to 1010 nm

1986 ◽  
Author(s):  
J. A. Caird ◽  
W. F. Krupke ◽  
M. D. Shinn ◽  
P. R. Staver ◽  
H. J. Guggenheim
Keyword(s):  
Room Temperature ◽  
Laser Emission

cw and pulsed 2.8 μm laser emission from diode‐pumped Er3+:LiYF4at room temperature

1987 ◽  
Vol 50 (22) ◽  
pp. 1553-1555 ◽  
Author(s):  
G. J. Kintz ◽  
R. Allen ◽  
L. Esterowitz
Keyword(s):  
Room Temperature ◽  
Laser Emission ◽  
Diode Pumped

Efficient simultaneous Red and Green laser emission in Pr:LiYF4

2013 ◽  
Author(s):  
Zhe Liu ◽  
Jean-Louis Doualan ◽  
Western Bolaños ◽  
Bin Xu ◽  
Florent Starecki ◽  
...  
Keyword(s):  
Laser Emission ◽  
Green Laser

Room-temperature blue–violet laser emission from individual ultra-long ZnO microbelts

2014 ◽  
Vol 121 ◽  
pp. 231-233 ◽  
Author(s):  
Ning Zhang ◽  
Ke Yu ◽  
Qiong Li ◽  
Changqing Song ◽  
Lei Zhu ◽  
...  
Keyword(s):  
Room Temperature ◽  
Laser Emission
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