Ultra-low threshold optically pumped random laser emission behavior of highly oriented pyrolytic graphite

2014 ◽  
Vol 115 ◽  
pp. 261-264 ◽  
Author(s):  
Zhikun Zhang ◽  
Jiming Bian ◽  
Yuzhi Zhang ◽  
Junfeng Zhang ◽  
Fuwen Qin ◽  
...  
Keyword(s):  
Laser Emission ◽  
Pyrolytic Graphite ◽  
Random Laser ◽  
Highly Oriented Pyrolytic Graphite ◽  
Optically Pumped ◽  
Emission Behavior ◽  
Low Threshold

Laser Emission in PMMA Nano-Composite Films

2007 ◽  
Vol 121-123 ◽  
pp. 1233-1236
Author(s):  
Xiao Hong Sun ◽  
Xiao Ming Tao ◽  
Pu Xue ◽  
Jian Guo Deng ◽  
Kwan Kai Cheong
Keyword(s):  
Scanning Probe Microscopy ◽  
Laser Emission ◽  
Composite Films ◽  
Film Structure ◽  
Nano Particles ◽  
Scanning Probe ◽  
Pmma Film ◽  
Random Laser ◽  
Nano Composite ◽  
Low Threshold

In this article, low-threshold random laser with one mirror and feedback is investigated in PMMA film containing Rhodamine 590 and TiO2 nano-particles. Incoherent and coherent laser emission is observed. Optics microscopy and Scanning Probe Microscopy are used to investigate the film structure and the principle of incoherent and coherent laser is analyzed.

Effects of Wet Chemical Oxidation on Surface Functionalization and Morphology of Highly Oriented Pyrolytic Graphite

2020 ◽  
Author(s):  
Mikhail Trought ◽  
Isobel Wentworth ◽  
Timothy Leftwich ◽  
Kathryn Perrine
Keyword(s):  
Surface Functionalization ◽  
Functional Group ◽  
Pyrolytic Graphite ◽  
Surface Oxidation ◽  
Chemical Oxidation ◽  
Synthesis Methods ◽  
Acid Solutions ◽  
Highly Oriented Pyrolytic Graphite ◽  
Wet Chemical ◽  
Surface Morphologies

The knowledge of chemical functionalization for area selective deposition (ASD) is crucial for designing the next generation heterogeneous catalysis. Surface functionalization by oxidation was studied on the surface of highly oriented pyrolytic graphite (HOPG). The HOPG surface was exposed to with various concentrations of two different acids (HCl and HNO3). We show that exposure of the HOPG surface to the acid solutions produce primarily the same -OH functional group and also significant differences the surface topography. Mechanisms are suggested to explain these strikingly different surface morphologies after surface oxidation. This knowledge can be used to for ASD synthesis methods for future graphene-based technologies.

Functionalized 4,4′-Bipyridines: Synthesis and 2D Organization on Highly Oriented Pyrolytic Graphite

2021 ◽  
Vol 86 (4) ◽  
pp. 3356-3366
Author(s):  
Jimmy Richard ◽  
Jean Joseph ◽  
Can Wang ◽  
Artur Ciesielski ◽  
Jean Weiss ◽  
...  
Keyword(s):  
Pyrolytic Graphite ◽  
Highly Oriented Pyrolytic Graphite

Low threshold 1550 nm emitting QD optically pumped VCSEL

2020 ◽  
pp. 1-1
Author(s):  
C. Paranthoen ◽  
C. Levallois ◽  
G. Brivalle ◽  
M. Perrin ◽  
A. Le Corre ◽  
...  
Keyword(s):  
Optically Pumped ◽  
Low Threshold

Using random laser emission to investigate the bonding energy of laser dye dimers

2008 ◽  
Vol 464 (4-6) ◽  
pp. 245-248 ◽  
Author(s):  
C. Tolentino Dominguez ◽  
Emerson de Lima ◽  
P.C. de Oliveira ◽  
F. López Arbeloa
Keyword(s):  
Laser Emission ◽  
Bonding Energy ◽  
Random Laser ◽  
Laser Dye

Quantized electronic structure and growth of Pb films on highly oriented pyrolytic graphite

2008 ◽  
Vol 78 (23) ◽  
Author(s):  
Y. Liu ◽  
J. J. Paggel ◽  
M. H. Upton ◽  
T. Miller ◽  
T.-C. Chiang
Keyword(s):  
Electronic Structure ◽  
Pyrolytic Graphite ◽  
Highly Oriented Pyrolytic Graphite

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
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