Gaussian Beams and Inverse Boundary Spectral Problems

2004 ◽  
pp. 127-163 ◽  
Author(s):  
Alexander Katchalov ◽  
Matti Lassas
Keyword(s):  
Gaussian Beams ◽  
Inverse Boundary ◽  
Spectral Problems

Inverse Boundary Spectral Problems

2001 ◽  
Author(s):  
Alexander Kachalov ◽  
Yaroslav Kurylev ◽  
Matti Lassas
Keyword(s):  
Inverse Boundary ◽  
Spectral Problems

A further comparative study of flattened Gaussian beams and super-Gaussian beams

2001 ◽  
Vol 48 (2) ◽  
pp. 371-377
Author(s):  
Baida Lü ◽  
Shirong Luo ◽  
Xiaoling Ji
Keyword(s):  
Comparative Study ◽  
Gaussian Beams

SPECTRAL PROBLEMS ARISING IN THE STABILIZATION PROBLEM FOR THE LOADED HEAT EQUATION: A TWO-DIMENSIONAL AND MULTI-POINT CASES

2019 ◽  
Vol 7 (1) ◽  
pp. 23-37
Author(s):  
Jenaliyev M.T. ◽  
◽  
Imanberdiyev K.B. ◽  
Kassymbekova A.S. ◽  
Sharipov K.S. ◽  
...  
Keyword(s):  
Heat Equation ◽  
Two Dimensional ◽  
Stabilization Problem ◽  
Spectral Problems

Modern optics of Gaussian beams

2012 ◽  
Vol 182 (4) ◽  
pp. 442 ◽  
Author(s):  
Vladimir G. Volostnikov
Keyword(s):  
Gaussian Beams

To the solution of nonlinear inverse boundary value heat conduction problems

2016 ◽  
Vol 19 (1) ◽  
pp. 28-36 ◽  
Author(s):  
Yu. Matsevityy ◽  
◽  
N. Safonov ◽  
V. Ganchin ◽  
◽  
...  
Keyword(s):  
Heat Conduction ◽  
Boundary Value ◽  
Inverse Boundary

Laser Oscillation in Aggregates of Ultrasmall Si Nanoparticles

2002 ◽  
Vol 728 ◽  
Author(s):  
Munir H. Nayfeh
Keyword(s):  
Stimulated Emission ◽  
Gaussian Beams ◽  
Single Particles ◽  
Nonlinear Characteristics ◽  
Femtosecond Radiation ◽  
Highly Nonlinear ◽  
Line Narrowing ◽  
Si Nanoparticles ◽  
Speckle Patterns ◽  
Spectral Line Narrowing

AbstractWe dispersed electrochemically etched Si into ultrabright ultrasmall nanoparticles, with brightness higher than fluorescein or rhodamine. The emission from single particles is readily detectable. Aggregates or films of the particles exhibit emission with highly nonlinear characteristics. We observe directed blue beams at ∼ 410 nm between faces of aggregates excited by femtosecond radiation at 780 nm; and at ∼ 610 nm from aggregates of red luminescent Si nanoparticles excited by radiation at 550-570 nm from a mercury lamp. Intense directed Gaussian beams, a pumping threshold, spectral line narrowing, and speckle patterns manifest the emission. The results are analyzed in terms of population inversion and stimulated emission in quantum confinement-induced Si-Si dimer phase, found only on ultrasmall Si nanoparticles. This microlasing constitutes an important step towards the realization of a laser on a chip.

Solving Inverse Boundary Heat Conduction Problems for Compound Pivot

2007 ◽  
Vol 39 (4) ◽  
pp. 37-60 ◽  
Author(s):  
Ivan V. Sergienko ◽  
Vasiliy S. Deineka
Keyword(s):  
Heat Conduction ◽  
Inverse Boundary
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