20-22 May 2015
Asia/Bangkok timezone
The Centennial Celebration of General Relativity Theory and 80 Years of Thai Physics Graduate

Simulation of circular polarization filter in 1D chiral photonic crystal structure with defect using FDTD method: oblique incidence

21 May 2015, 09:30
15m
Phokeethra 1 ()

Phokeethra 1

Oral presentation Photonics and Optoelectronics Photonics and Optoelectronics

Speaker

Mr Prateep Pimsarn (Applied Optics Research Group, Department of Physics, Faculty of Science, Mahidol University, Bangkok, Thailand 10400)

Description

The circular polarization filter is designed in 1-dimensional (1D) chiral photonic crystal structure with defect. In this simulation, the structure is composed of 10 pairs of periodic layers of high (AgGaS$_2$) and low (quartz) refractive index chiral materials with defect layer in the middle. By using finite-different time-domain (FDTD) method, the transmission spectrum from structure reveals the potential of selected right-/left- circular polarization filter for specific wavelength and the effect of oblique incidence on transmission spectrum is presented.

Primary author

Mr Prateep Pimsarn (Applied Optics Research Group, Department of Physics, Faculty of Science, Mahidol University, Bangkok, Thailand 10400)

Co-author

Dr Ratchapak Chitaree (Applied Optics Research Group, Department of Physics, Faculty of Science, Mahidol University, Bangkok, Thailand 10400)

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