Layer-Dependent Nonlinear Optical Properties of WS2, MoS2, and Bi2S3 Films Synthesized by Chemical Vapor Deposition

Author(s):  
Chunhui Lu ◽  
Mingwei Luo ◽  
Yanqing Ge ◽  
Yuanyuan Huang ◽  
Qiyi Zhao ◽  
...  
2002 ◽  
Vol 91 (7) ◽  
pp. 4607-4610 ◽  
Author(s):  
G. Vijaya Prakash ◽  
M. Cazzanelli ◽  
Z. Gaburro ◽  
L. Pavesi ◽  
F. Iacona ◽  
...  

2006 ◽  
Vol 958 ◽  
Author(s):  
Rita Spano ◽  
Massimo Cazzanelli ◽  
Nicola Daldosso ◽  
Zeno Gaburro ◽  
Luigi Ferraioli ◽  
...  

ABSTRACTA systematic study of nonlinear optical properties of silicon nanocrystals (Si-nc) grown by plasma enhanced chemical vapor deposition (PECVD) is reported. Nonlinear optical refraction and absorption have been measured by z-scan technique at three different time regimes and at different wavelengths to investigate both the thermal and electronic responses. For this purpose three different laser sources have been used. Different behaviors, as expected from the theory, for different pump pulse durations are observed.


1995 ◽  
Vol 392 ◽  
Author(s):  
M. J. Nystrom ◽  
B. W. Wessels ◽  
J. Chen ◽  
D. Studebaker ◽  
T. J. Marks ◽  
...  

AbstractFerroelectric potassium niobate thin films have been deposited by conventional, low pressure metalorganic chemical vapor deposition on several types of oxide substrates. The films were epitaxial with a c-axis orientation normal to the substrate. Atomic force microscopy revealed a surface roughness of 1 - 4 nm. Transmission electron microscopy showed the film/substrate interface to be semi-coherent with lattice misfit accommodated by misfit dislocations. The nonlinear optical properties of the KNbO3 films were measured by a transmission technique. The room temperature, effective second order nonlinear coefficient was 13 pm/V.


2004 ◽  
Vol 43 (No. 6A) ◽  
pp. L698-L701 ◽  
Author(s):  
Marco Sacilotti ◽  
Luc Imhoff ◽  
Colette Dumas ◽  
Pierre Viste ◽  
Jean-Claude Vial ◽  
...  

1999 ◽  
Vol 4 (S1) ◽  
pp. 634-641 ◽  
Author(s):  
M. Sumiya ◽  
T. Ohnishi ◽  
M. Tanaka ◽  
A. Ohtomo ◽  
M. Kawasaki ◽  
...  

Control of the polarity of GaN films deposited by metalorganic chemical vapor deposition was achieved by substrate nitridation and subsequent annealing of a buffer layer. The surface morphology and optical properties of 1.2μm GaN films were influenced by the different growth mode due to the polar direction. Coaxial impact collision ion scattering spectroscopy revealed that the polarity composition of a buffer layer on nitrided sapphire varied by annealing in a H2 atmosphere. It was considered that the systematic variation of the surface morphology was caused by the polarity composition of the buffer layer.


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