Refractive index inversion based on Mueller matrix method

2017 ◽  
Author(s):  
Huaxi Fan ◽  
Wenyuan Wu ◽  
Yanhua Huang ◽  
Zhaozhao Li
Keyword(s):  
Refractive Index ◽  
Matrix Method ◽  
Mueller Matrix

scholarly journals Characterization of Volume Gratings Based on Distributed Dielectric Constant Model Using Mueller Matrix Ellipsometry

2019 ◽  
Vol 9 (4) ◽  
pp. 698 ◽  
Author(s):  
Hao Jiang ◽  
Zhao Ma ◽  
Honggang Gu ◽  
Xiuguo Chen ◽  
Shiyuan Liu
Keyword(s):  
Dielectric Constant ◽  
Refractive Index ◽  
Minimum Mean Square Error ◽  
Incident Light ◽  
Mueller Matrix ◽  
Distribution Functions ◽  
Refractive Index Distribution ◽  
Index Distribution ◽  
Constant Distribution ◽  
Volume Gratings

Volume grating is a key optical component due to its comprehensive applications. Other than the common grating structures, volume grating is essentially a predesigned refractive index distribution recorded in materials, which raises the challenges of metrology. Although we have demonstrated the potential application of ellipsometry for volume grating characterization, it has been limited due to the absence of general forward model reflecting the refractive index distribution. Herein, we introduced a distributed dielectric constant based rigorous coupled-wave analysis (RCWA) model to interpret the interaction between the incident light and volume grating, with which the Mueller matrix can be calculated. Combining with a regression analysis with the objective to match the measured Mueller matrices with minimum mean square error (MSE), the parameters of the dielectric constant distribution function can be determined. The proposed method has been demonstrated using a series of simulations of measuring the volume gratings with different dielectric constant distribution functions. Further demonstration has been carried out by experimental measurements on volume holographic gratings recorded in the composite of polymer and zinc sulfide (ZnS) nanoparticles. By directly fitting the spatiotemporal concentration of the nanoparticles, the diffusion coefficient has been further evaluated, which is consistent to the result reported in our previous investigations.

Transmission Spectra of Quantum-Well Structured Photonic Crystals with Positive- or Negative- Refractive Index Materials

2010 ◽  
Vol 663-665 ◽  
pp. 191-194
Author(s):  
Qiang Hua Lu ◽  
Ying Jun Gao ◽  
Mei Na Jiao
Keyword(s):  
Refractive Index ◽  
Photonic Crystals ◽  
Quantum Well ◽  
Transfer Matrix ◽  
Transfer Matrix Method ◽  
Matrix Method ◽  
Negative Refractive Index ◽  
Optical Filters ◽  
Transmission Spectra

By means of the transfer matrix method, transmission spectra and dispersion relationships of photonic crystals (AB) m (CD) n (AB) m (CD) n (AB) m are investigated herein. The number and highness of transmission peaks are found to relate closely with the repeating periodicity n, and (CD)n medium of positive- or negative- refractive index as well. The results may be helpful for designing optical filters of desired properties.

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