Off-the-shelf laser diodes with narrow-line emission at visible wavelengths by integration of distributed feedback (DFB) surface grating (Conference Presentation)

2020 ◽  
Author(s):  
Jorge A. Holguín-Lerma ◽  
Tien Khee Ng ◽  
Boon S. Ooi
Keyword(s):  
Laser Diodes ◽  
Line Emission ◽  
Distributed Feedback ◽  
Narrow Line ◽  
Surface Grating ◽  
Visible Wavelengths

scholarly journals Narrow-line InGaN/GaN green laser diode with high-order distributed-feedback surface grating

2019 ◽  
Vol 12 (4) ◽  
pp. 042007 ◽  
Author(s):  
Jorge A. Holguín-Lerma ◽  
Tien Khee Ng ◽  
Boon S. Ooi
Keyword(s):  
Laser Diode ◽  
Green Laser ◽  
High Order ◽  
Distributed Feedback ◽  
Narrow Line ◽  
Surface Grating

1.5μm λ/4 shifted multiple quantum well distributed feedback laser diodes

1988 ◽  
Vol 24 (23) ◽  
pp. 1408 ◽  
Author(s):  
T. Sasaki ◽  
S. Takano ◽  
N. Henmi ◽  
H. Yamada ◽  
M. Kitamura ◽  
...  
Keyword(s):  
Quantum Well ◽  
Multiple Quantum Well ◽  
Laser Diodes ◽  
Distributed Feedback ◽  
Multiple Quantum ◽  
Distributed Feedback Laser

1.5 μm multiple-quantum-well distributed feedback laser diodes grown on corrugated InP by MOVPE

1988 ◽  
Vol 24 (16) ◽  
pp. 1045 ◽  
Author(s):  
M. Kitamura ◽  
S. Takano ◽  
N. Henmi ◽  
T. Sasaki ◽  
H. Yamada ◽  
...  
Keyword(s):  
Quantum Well ◽  
Multiple Quantum Well ◽  
Laser Diodes ◽  
Distributed Feedback ◽  
Multiple Quantum ◽  
Distributed Feedback Laser

Pressure-induced luminescence from broadband to narrow-line emission in Cr3+-doped LiCaAlF6at room temperature

2006 ◽  
Vol 26 (4) ◽  
pp. 345-348 ◽  
Author(s):  
M. N. Sanz-Ortiz ◽  
F. Rodríguez ◽  
I. Hernández ◽  
R. Valiente ◽  
S. Kück
Keyword(s):  
Room Temperature ◽  
Line Emission ◽  
Narrow Line

scholarly journals High-velocity interstellar absorption associated with the supernova remnant W28

2020 ◽  
Vol 495 (3) ◽  
pp. 2909-2920 ◽  
Author(s):  
Adam M Ritchey
Keyword(s):  
High Velocity ◽  
Molecular Cloud ◽  
Supernova Remnant ◽  
Line Emission ◽  
Line Of Sight ◽  
Interstellar Gas ◽  
Lower Velocity ◽  
North East ◽  
The North ◽  
Visible Wavelengths

ABSTRACT We present an analysis of moderately high-resolution optical spectra obtained for the sightline to CD−23 13777, an O9 supergiant that probes high-velocity interstellar gas associated with the supernova remnant W28. Absorption components at both high positive and high negative velocity are seen in the interstellar Na i D and Ca ii H and K lines towards CD−23 13777. The high-velocity components exhibit low Na i/Ca ii ratios, suggesting efficient grain destruction by shock sputtering. High column densities of CH+, and high CH+/CH ratios, for the components seen at lower velocity may be indicative of enhanced turbulence in the clouds interacting with W28. The highest positive and negative velocities of the components seen in Na i and Ca ii absorption towards CD−23 13777 imply that the velocity of the blast wave associated with W28 is at least 150 km s−1, a value that is significantly higher than most previous estimates. The line of sight to CD−23 13777 passes very close to a well-known site of interaction between the supernova remnant and a molecular cloud to the north-east. The north-east molecular cloud exhibits broad molecular line emission, OH maser emission from numerous locations, and bright extended GeV and TeV γ-ray emission. The sightline to CD−23 13777 is thus a unique and valuable probe of the interaction between W28 and dense molecular gas in its environs. Future observations at ultraviolet and visible wavelengths will help to better constrain the abundances, kinematics, and physical conditions in the shocked and quiescent gas along this line of sight.

1.4 [micro sign]m continuous-wave GaInNAs distributed feedback laser diodes

2003 ◽  
Vol 39 (25) ◽  
pp. 1815 ◽  
Author(s):  
D. Gollub ◽  
S. Moses ◽  
M. Kamp ◽  
A. Forchel
Keyword(s):  
Continuous Wave ◽  
Laser Diodes ◽  
Distributed Feedback ◽  
Distributed Feedback Laser
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