CHALCOGENIDE GLASS PLANAR WAVEGUIDES: Z-SCAN INVESTIGATION OF REFRACTIVE INDEX CHANGES

1992 ◽  
Author(s):  
M. Bertolotti ◽  
F. Michelotti ◽  
A. Andriesh ◽  
V. Chumash ◽  
G. Liakhou
Keyword(s):  
Refractive Index ◽  
Chalcogenide Glass ◽  
Planar Waveguides ◽  
Index Changes

Chalcogenide glass thin films: Z-Scan measurements of refractive index changes

1993 ◽  
Author(s):  
Andrei M. Andriesh ◽  
Francesco Michelotti ◽  
Valentin N. Ciumash ◽  
Mario Bertolotti
Keyword(s):  
Thin Films ◽  
Refractive Index ◽  
Chalcogenide Glass ◽  
Index Changes

scholarly journals Ultrafast laser-induced refractive index changes in Ge_15As_15S_70 chalcogenide glass

2016 ◽  
Vol 6 (6) ◽  
pp. 1914 ◽  
Author(s):  
C. D’Amico ◽  
C. Caillaud ◽  
P. K. Velpula ◽  
M. K Bhuyan ◽  
M. Somayaji ◽  
...  
Keyword(s):  
Refractive Index ◽  
Chalcogenide Glass ◽  
Ultrafast Laser ◽  
Index Changes

Chalcogenide glass thin films: Z-Scan measurements of refractive index changes

1993 ◽  
Author(s):  
Francesco Michelotti ◽  
Mario Bertolotti ◽  
Valentin N. Ciumash ◽  
Andrei M. Andriesh
Keyword(s):  
Thin Films ◽  
Refractive Index ◽  
Chalcogenide Glass ◽  
Index Changes

New Hierarchically Structured Optical Materials for Dynamic Refractive Index Changes

2003 ◽  
Author(s):  
Bradley F. Chmelka ◽  
Earl Danielson ◽  
Michael D. Wyrsta
Keyword(s):  
Refractive Index ◽  
Optical Materials ◽  
Index Changes

LINEAR AND NONLINEAR INTERSUBBAND OPTICAL ABSORPTION OF FINITE AND INFINITE SEMI-PARABOLIC QUANTUM WELLS

2011 ◽  
Vol 25 (07) ◽  
pp. 497-507 ◽  
Author(s):  
M. J. KARIMI ◽  
A. KESHAVARZ ◽  
A. POOSTFORUSH
Keyword(s):  
Refractive Index ◽  
Optical Properties ◽  
Optical Absorption ◽  
Quantum Well ◽  
Quantum Wells ◽  
Resonant Peak ◽  
Energy Eigenvalues ◽  
Finite Case ◽  
Infinite Case ◽  
Index Changes

In this work, the optical absorption coefficients and the refractive index changes for the infinite and finite semi-parabolic quantum well are calculated. Numerical calculations are performed for typical GaAs / Al x Ga 1-x As semi-parabolic quantum well. The energy eigenvalues and eigenfunctions of these systems are calculated numerically. Optical properties are obtained using the compact density matrix approach. Results show that the energy eigenvalues and the matrix elements of the infinite and finite cases are different. The calculations reveal that the resonant peaks of the optical properties of the finite case occur at lower values of the incident photon energy with respect to the infinite case. Results indicate that the maximum value of the refractive index changes for the finite case are greater than that of the infinite case. Our calculations also show that in contrast to the infinite case, the resonant peak value of the total absorption coefficient in the case of the finite well is a non-monotonic function of the semi-parabolic confinement frequency.

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