scholarly journals Refractive index changes induced in the surface layer of a lithium niobate crystal during the channel waveguide formation for optoelectronic devices

2019 ◽  
Vol 22 (4) ◽  
pp. 33-36
Author(s):  
A. D. Bezpaly ◽  
◽  
V. I. Bykov ◽  
A. E. Mandel ◽  
V. A. Krakovskiy ◽  
...  
Keyword(s):  
Refractive Index ◽  
Surface Layer ◽  
Lithium Niobate ◽  
Lithium Niobate Crystal ◽  
Optoelectronic Devices ◽  
Channel Waveguide ◽  
Index Changes

Optically Induced Channel Waveguide Structures with Spatial Modulation of Parameters in the Surface Layer of Lithium Niobate

2019 ◽  
Vol 62 (3) ◽  
pp. 387-392
Author(s):  
A. D. Bezpaly ◽  
V. M. Shandarov ◽  
A. E. Mandel ◽  
V. I. Bykov ◽  
K. M. Mambetova
Keyword(s):  
Surface Layer ◽  
Lithium Niobate ◽  
Channel Waveguide ◽  
Spatial Modulation ◽  
Optically Induced

Domain reversal properties and refractive index changes of magnesium doped lithium niobate upon ion exposure

2008 ◽  
Vol 103 (3) ◽  
pp. 034104 ◽  
Author(s):  
L. Jentjens ◽  
H. Hattermann ◽  
K. Peithmann ◽  
M. Haaks ◽  
K. Maier ◽  
...  
Keyword(s):  
Refractive Index ◽  
Lithium Niobate ◽  
Index Changes ◽  
Domain Reversal

Structural, electronic and optical properties of LiNbO3 using GGA-PBE and TB-mBJ functionals: A DFT study

2018 ◽  
Vol 32 (14) ◽  
pp. 1850168 ◽  
Author(s):  
M. Arshad Javid ◽  
Zafar Ullah Khan ◽  
Zahid Mehmood ◽  
Azeem Nabi ◽  
Fayyaz Hussain ◽  
...  
Keyword(s):  
Refractive Index ◽  
Optical Properties ◽  
Lithium Niobate ◽  
Dielectric Function ◽  
Lithium Niobate Crystal ◽  
Structural Parameters ◽  
Dft Method ◽  
Bandgap Energy ◽  
Electronic And Optical Properties ◽  
Experimental Values

In the present work, first-principles calculations were performed to obtain the structural, electronic and optical properties of lithium niobate crystal using two exchange-correlation functionals (GGA-PBE and TB-mBJ). The calculated structural parameters were very close to the experimental values. TB-mBJ functional was found to be good when compared to LDA and GGA functionals in case of bandgap energy of 3.715 eV of lithium niobate. It was observed that the upper valence and lower conduction bands consist mainly the O-2p and Nb-4[Formula: see text] states, respectively. Furthermore, calculations for real and imaginary parts of frequency-dependent dielectric function [Formula: see text] of lithium niobate crystal were performed using TD-DFT method. The ordinary refractive index n[Formula: see text], extraordinary refractive index n[Formula: see text], its birefringence and absorption peaks in imaginary dielectric function [Formula: see text] were also calculated.

Control of the Susceptibility of Lithium Niobate to Laser‐Induced Refractive Index Changes

1971 ◽  
Vol 19 (5) ◽  
pp. 130-132 ◽  
Author(s):  
G. E. Peterson ◽  
A. M. Glass ◽  
T. J. Negran
Keyword(s):  
Refractive Index ◽  
Lithium Niobate ◽  
Index Changes

Refractive index changes in lithium niobate crystals by high-energy particle radiation

2006 ◽  
Vol 23 (10) ◽  
pp. 2107 ◽  
Author(s):  
Konrad Peithmann ◽  
Mohammad-Reza Zamani-Meymian ◽  
Matz Haaks ◽  
Karl Maier ◽  
Birk Andreas ◽  
...  
Keyword(s):  
Refractive Index ◽  
Lithium Niobate ◽  
High Energy ◽  
High Energy Particle ◽  
Energy Particle ◽  
Particle Radiation ◽  
Index Changes ◽  
Lithium Niobate Crystals

scholarly journals Optical-stopping effect of As2S8 channel waveguide fabricated by method of photoinduced refractive index changes

2006 ◽  
Vol 55 (4) ◽  
pp. 1868
Author(s):  
Zou Lin-Er ◽  
Chen Bao-Xue ◽  
Chen Lin ◽  
Yuan Yi-Fang ◽  
Hiromi Hamanaka ◽  
...  
Keyword(s):  
Refractive Index ◽  
Channel Waveguide ◽  
Index Changes
Sign in / Sign up

Export Citation Format

Share Document