Spatial Mode Distributions of Ince-Gaussian Beams Modulated by Phase Difference Factor

2017 ◽  
Vol 37 (6) ◽  
pp. 0626002
Author(s):  
马海祥 Ma Haixiang ◽  
李新忠 Li Xinzhong ◽  
李贺贺 Li Hehe ◽  
唐苗苗 Tang Miaomiao ◽  
王静鸽 Wang Jingge ◽  
...  
2018 ◽  
Vol 25 (3) ◽  
pp. 323-329 ◽  
Author(s):  
Zhiyu Xiao ◽  
Hui Xia ◽  
Tao Yu ◽  
Ding Xie ◽  
Wenke Xie

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

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

2002 ◽  
Vol 728 ◽  
Author(s):  
Munir H. Nayfeh

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.


2017 ◽  
pp. 1
Author(s):  
Asma M. N. El Ferjani ◽  
Ahmed S. El Barsha ◽  
AlZaroog Saleh Abdulali
Keyword(s):  

1997 ◽  
Vol 28 (1) ◽  
pp. 51-64 ◽  
Author(s):  
S.K. Mishra ◽  
M.K. Jain ◽  
S.M. Seth

The flood waves are characterized within the frame-work of loop (or hysteresis) of rating curves. The National Weather Service's Dam Break Flood Forecasting Model is used to generate the flood waves in the downstream valley of the Bargi dam located in Central India. The quantified hystereses, η, of non-dimensional rating curves are related with the corresponding flood wave characteristics, viz., speed of travel, wave number, phase difference, and attenuation. The analysis has led to the development of an exact relationship between η and phase difference. Using the concept of wave zoning, the better performance of the hysteresis based criteria compared with the available criteria is verified using Convex and Muskingum-Cunge routing in the wave zones. η limits are specified for the applicability of these simplified routing models. Furthermore, the envisaged applications of the based analysis are introduced.


2006 ◽  
Vol 45 (16) ◽  
pp. 3793 ◽  
Author(s):  
Yahya Baykal ◽  
Halil T. Eyyuboğlu

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