Design and simulation of electrically addressed infrared filtering chip based on cascaded liquid-crystal Fabry-Perot effect for integration application of infrared spectral imaging sensor array

Huaidong Zhang; Anbang Fu; Xinyu Zhang; Hongshi Sang; Changsheng Xie

doi:10.1117/12.2035031

11 September 2013 Design and simulation of electrically addressed infrared filtering chip based on cascaded liquid-crystal Fabry-Perot effect for integration application of infrared spectral imaging sensor array

Huaidong Zhang, Anbang Fu, Xinyu Zhang, Hongshi Sang, Changsheng Xie

Author Affiliations +

Proceedings Volume 8907, International Symposium on Photoelectronic Detection and Imaging 2013: Infrared Imaging and Applications; 89075J (2013) https://doi.org/10.1117/12.2035031
Event: ISPDI 2013 - Fifth International Symposium on Photoelectronic Detection and Imaging, 2013, Beijing, China

Abstract

A wavelength tunable optical filter based on cascaded Liquid-Crystal Fabry-Perot (LC-FP) cavity with many working units has been proposed and simulated in this paper. By choosing different material and according geometric parameters, we simulated the structure in the wavelength of medium infrared (IR)(3-5μm) and far IR(8-14μm) with the algorithm of thin film matrix equation and iterative finite-difference. Finally, we give the spectrum of the structure under different driving-voltage. Combing this structure with uncooled infrared focal plane array (IRFPA), the image of many spectral bands can be obtained in one picture frame by applying different driving-voltage on each unit. Compared with other design, this structure has the advantages of wide free spectral range (FSR), compact integration, low cost and high stability.

Citation Download Citation

Huaidong Zhang, Anbang Fu, Xinyu Zhang, Hongshi Sang, and Changsheng Xie "Design and simulation of electrically addressed infrared filtering chip based on cascaded liquid-crystal Fabry-Perot effect for integration application of infrared spectral imaging sensor array", Proc. SPIE 8907, International Symposium on Photoelectronic Detection and Imaging 2013: Infrared Imaging and Applications, 89075J (11 September 2013); https://doi.org/10.1117/12.2035031

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