Effective refractive index and group velocity determination of three-dimensional photonic crystals by means of white light interferometry

2006 ◽  
Vol 73 (12) ◽  
Author(s):  
J. F. Galisteo-López ◽  
M. Galli ◽  
M. Patrini ◽  
A. Balestreri ◽  
L. C. Andreani ◽  
...  
Keyword(s):  
Refractive Index ◽  
Photonic Crystals ◽  
Group Velocity ◽  
White Light ◽  
Effective Refractive Index ◽  
Three Dimensional ◽  
White Light Interferometry

scholarly journals Titania Photonic Crystals with Precise Photonic Band Gap Position via Anodizing with Voltage versus Optical Path Length Modulation

Nanomaterials ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 651 ◽  
Author(s):  
Ermolaev ◽  
Kushnir ◽  
Sapoletova ◽  
Napolskii
Keyword(s):  
Refractive Index ◽  
Photonic Crystals ◽  
Band Gap ◽  
Titanium Oxide ◽  
Effective Refractive Index ◽  
Photonic Band Gap ◽  
Voltage Versus ◽  
Research Attention ◽  
Anodic Titanium Oxide ◽  
Photonic Band

Photonic crystals based on titanium oxide are promising for optoelectronic applications, for example as components of solar cells and photodetectors. These materials attract great research attention because of the high refractive index of TiO2. One of the promising routes to prepare photonic crystals based on titanium oxide is titanium anodizing at periodically changing voltage or current. However, precise control of the photonic band gap position in anodic titania films is a challenge. To solve this problem, systematic data on the effective refractive index of the porous anodic titanium oxide are required. In this research, we determine quantitatively the dependence of the effective refractive index of porous anodic titanium oxide on the anodizing regime and develop a model which allows one to predict and, therefore, control photonic band gap position in the visible spectrum range with an accuracy better than 98.5%. The prospects of anodic titania photonic crystals implementation as refractive index sensors are demonstrated.

scholarly journals High resolution temperature independent refractive index measurement using differential white light interferometry

2013 ◽  
Vol 188 ◽  
pp. 1212-1217 ◽  
Author(s):  
Carlos Gouveia ◽  
Mohammad Zibaii ◽  
Hamid Latifi ◽  
Manuel J.B. Marques ◽  
J.M. Baptista ◽  
...  
Keyword(s):  
Refractive Index ◽  
High Resolution ◽  
White Light ◽  
White Light Interferometry ◽  
Refractive Index Measurement ◽  
Index Measurement
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