scholarly journals Room‐temperature laser operation of a Ga(In,As)/Ga(As,Bi)/Ga(In,As) W‐type laser diode

2021 ◽  
Author(s):  
Thilo Hepp ◽  
Jannik Lehr ◽  
Robin Günkel ◽  
Oliver Maßmeyer ◽  
Johannes Glowatzki ◽  
...  
Keyword(s):  
Laser Diode ◽  
Room Temperature ◽  
Laser Operation

GaN-based blue laser diode with 6.0 W of output power under continuous-wave operation at room temperature

2021 ◽  
Vol 42 (11) ◽  
pp. 112801
Author(s):  
Feng Liang ◽  
Degang Zhao ◽  
Zongshun Liu ◽  
Ping Chen ◽  
Jing Yang ◽  
...  
Keyword(s):  
Laser Diode ◽  
Room Temperature ◽  
Continuous Wave ◽  
Chemical Vapor ◽  
Threshold Current ◽  
Stimulated Emission ◽  
Blue Laser ◽  
Organic Chemical ◽  
Blue Laser Diode ◽  
Continuous Wave Operation

Abstract In this work, we reported the room-temperature continuous-wave operation of 6.0 W GaN-based blue laser diode (LD), and its stimulated emission wavelength is around 442 nm. The GaN-based high power blue LD is grown on a c-plane GaN substrate by metal organic chemical vapor deposition (MOCVD), and the width and length of the ridge waveguide structure are 30 and 1200 μm, respectively. The threshold current is about 400 mA, and corresponding threshold current density is 1.1 kA/cm2.

Continuous-Wave Operation of GaN Based Multi-Quantum-Well Laser Diode at Room Temperature

2008 ◽  
Vol 25 (4) ◽  
pp. 1281-1283 ◽  
Author(s):  
Zhang Li-Qun ◽  
Zhang Shu-Ming ◽  
Yang Hui ◽  
Cao Qing ◽  
Ji Lian ◽  
...  
Keyword(s):  
Quantum Well ◽  
Laser Diode ◽  
Room Temperature ◽  
Continuous Wave ◽  
Quantum Well Laser ◽  
Continuous Wave Operation ◽  
Multi Quantum Well

Visible Semiconductor Laser Operation Below 640 Nm At Room Temperature

2005 ◽  
Author(s):  
R.M. Fletcher ◽  
Q.R. Kuo ◽  
T.D. Osentowski ◽  
M.G. Craford ◽  
D.W. Nam ◽  
...  
Keyword(s):  
Semiconductor Laser ◽  
Room Temperature ◽  
Laser Operation

Comparative study of tunable room-temperature laser operation in the 900–1100-nm range: LiF:F_2^+ and Ti^3+:sapphire

2000 ◽  
Vol 39 (24) ◽  
pp. 4320 ◽  
Author(s):  
Chris B. Rawle ◽  
Iain T. McKinnie ◽  
Valerii V. Ter-Mikirtychev ◽  
Weston J. Sandle
Keyword(s):  
Comparative Study ◽  
Room Temperature ◽  
Laser Operation ◽  
Nm Range

scholarly journals Colossal Negative Magnetoresistance Effect in a La1.37Sr1.63Mn2O7 Single Crystal Grown by Laser-Diode-Heated Floating-Zone Technique

Crystals ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 547
Author(s):  
Si Wu ◽  
Yinghao Zhu ◽  
Junchao Xia ◽  
Pengfei Zhou ◽  
Haiyong Ni ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Single Crystal ◽  
Laser Diode ◽  
Room Temperature ◽  
Floating Zone ◽  
Magnetoresistance Effect ◽  
X Ray ◽  
Mr Effect ◽  
Distinct Features ◽  
The Magnetic Field

We have grown La 1.37 Sr 1.63 Mn 2 O 7 single crystals with a laser-diode-heated floating-zone furnace and studied the crystallinity, structure, and magnetoresistance (MR) effect by in-house X-ray Laue diffraction, X-ray powder diffraction, and resistance measurements. The La 1.37 Sr 1.63 Mn 2 O 7 single crystal crystallizes into a tetragonal structure with space group I4/mmm at room temperature. At 0 T, the maximum resistance centers around ∼166.9 K. Below ∼35.8 K, it displays an insulating character with an increase in resistance upon cooling. An applied magnetic field of B = 7 T strongly suppresses the resistance indicative of a negative MR effect. The minimum MR value equals −91.23% at 7 T and 128.7 K. The magnetic-field-dependent resistance shows distinct features at 1.67, 140, and 322 K, from which we calculated the corresponding MR values. At 14 T and 140 K, the colossal negative MR value is down to −94.04(5)%. We schematically fit the MR values with different models for an ideal describing of the interesting features of the MR value versus B curves.

Spectroscopy and efficient room-temperature laser operation of Tm,Ho:KY(WO4)2 around 2µm

2009 ◽  
Author(s):  
A.A. Lagatsky ◽  
F. Fusari ◽  
S.V. Kurilchik ◽  
V.E. Kisel ◽  
A.S. Yasukevich ◽  
...  
Keyword(s):  
Room Temperature ◽  
Laser Operation

Room-temperature CW laser operation at ∼1.55 μm (eye-safe range) of Yb:Er and Yb:Er:Ce:Ca/sub 2/Al/sub 2/SiO/sub 7/ crystals

1996 ◽  
Vol 32 (11) ◽  
pp. 2004-2009 ◽  
Author(s):  
B. Simondi-Teisseire ◽  
B. Viana ◽  
A.-M. Lejus ◽  
J.-M. Benitez ◽  
D. Vivien ◽  
...  
Keyword(s):  
Room Temperature ◽  
Laser Operation ◽  
Cw Laser

A technique for the preparation of low-threshold room-temperature GaAs laser diode structures

1969 ◽  
Vol 5 (4) ◽  
pp. 210-211 ◽  
Author(s):  
M. Panish ◽  
I. Hayashi ◽  
S. Sumski
Keyword(s):  
Laser Diode ◽  
Room Temperature ◽  
Gaas Laser ◽  
Low Threshold

Optical Properties of Crystals Doped with Sm3+or Dy3+Relevant to Potential InGaN/GaN Laser Diode-Pumped Visible Laser Operation: A Comparative Study

2014 ◽  
Vol 116 (5) ◽  
pp. 785-792
Author(s):  
W. Ryba-Romanowski ◽  
A. Strz ◽  
@p ◽  
R. Lisiecki ◽  
M. Berkowski
Keyword(s):  
Optical Properties ◽  
Comparative Study ◽  
Laser Diode ◽  
Laser Operation ◽  
Visible Laser ◽  
Diode Pumped
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