Effect of the refractive index mismatch on light propagation through diffusive layered media

2004 ◽  
Vol 70 (1) ◽  
Author(s):  
Fabrizio Martelli ◽  
Samuele Del Bianco ◽  
Giovanni Zaccanti
Keyword(s):  
Refractive Index ◽  
Light Propagation ◽  
Layered Media

scholarly journals General solutions of the theme “Light propagation in optical uniaxial crystals”

2017 ◽  
Vol 1 (T3) ◽  
pp. 79-89
Author(s):  
Nghia Quang Truong ◽  
Huong Tu Ngoc Nguyen
Keyword(s):  
Refractive Index ◽  
Light Propagation ◽  
New Approach ◽  
General Solutions ◽  
To Receive ◽  
Analytical Expressions

In this article, we introduce a new approach to receive general solutions which describe all of the properties of the light propagating across optical uniaxial crystals. In our approach we do not use the conception of refractive index ellipsoid as being done in references. The solutions are given in analytical expressions so we can handly calculate or writing a small program to compute these expressions.

Optically Controlled Light Propagation in Dye-Doped Nematic Liquid Crystals with Homogeneous Alignment

2011 ◽  
Vol 497 ◽  
pp. 142-146
Author(s):  
Tomoyuki Sasaki ◽  
Kenta Miura ◽  
Hiroshi Ono ◽  
Osamu Hanaizumi
Keyword(s):  
Refractive Index ◽  
Liquid Crystal ◽  
Liquid Crystals ◽  
Absorption Band ◽  
Temperature Variation ◽  
Light Propagation ◽  
Light Signal ◽  
Photothermal Effect ◽  
Absorption Of Light ◽  
Control Light

Light propagation in an optical waveguide fabricated by employing a dye-doped liquid crystal (DDLC) was observed. The propagation of a light signal in the waveguide was varied by irradiation with a control light whose wavelength was in the absorption band of the DDLC. By considering the photothermal effect of the DDLC, which enables the change of the refractive index due to temperature variation based on the absorption of light, we qualitatively explained the observed light propagation and demonstrated manipulation of the propagation.

Accuracy of three-point finite difference approximations for optical waveguides with step-wise refractive index discontinuities

2011 ◽  
Vol 19 (2) ◽  
Author(s):  
S. Sujecki
Keyword(s):  
Refractive Index ◽  
Finite Difference ◽  
Error Analysis ◽  
Optical Waveguides ◽  
Light Propagation ◽  
Truncation Error ◽  
Mesh Size ◽  
Refractive Index Profile ◽  
Finite Difference Approximations ◽  
Difference Approximations

AbstractA rigorous truncation error analysis of three-point finite difference approximations for optical waveguides with step-wise refractive index discontinuities is given. As the basis for the analysis we use the exact coefficients of the series that expresses the field value at a given finite difference node in terms of the field value and its derivatives at a neighbouring node. This series is applied to develop a rigorous formalism for the truncation error analysis of the three-point finite difference approximations used in the numerical modelling of light propagation in optical waveguides with step-wise discontinuities of the refractive index profile. The results show that the approximations reach O(h2) truncation error only asymptotically for sufficiently small values of the mesh size.

Perturbation model for light propagation through diffusive layered media

2005 ◽  
Vol 50 (9) ◽  
pp. 2159-2166 ◽  
Author(s):  
Fabrizio Martelli ◽  
Samuele Del Bianco ◽  
Giovanni Zaccanti
Keyword(s):  
Light Propagation ◽  
Layered Media ◽  
Perturbation Model
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