An electrically controlled liquid crystal Fabry-Perot hyperspectral imaging chip in mid-infrared region

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

doi:10.1117/12.2034687

11 September 2013 An electrically controlled liquid crystal Fabry-Perot hyperspectral imaging chip in mid-infrared region

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

Author Affiliations +

Proceedings Volume 8907, International Symposium on Photoelectronic Detection and Imaging 2013: Infrared Imaging and Applications; 89074A (2013) https://doi.org/10.1117/12.2034687
Event: ISPDI 2013 - Fifth International Symposium on Photoelectronic Detection and Imaging, 2013, Beijing, China

Abstract

This paper proposes a method to characterize a tunable liquid crystal Fabry-Perot (LC-FP) hyperspectral imaging detectors with electrically controlling and shifting wavelength of light beam penetrating the LC-FP chip proposed. Based on the effect of the directing vector distribution of LC materials can be remarkably changed and stably anchored in an electric field applied over the electrodes of the device, the refractive index of the LC materials filled into FP cavity can be modulated by voltage signal with relatively low amplitude. By the thin film matrix equation utilized, we calculated the transmissivity properties of the infrared radiation out from the LC-FP and continuously incident upon the photosensitive structure, and then acquired the basic relationship among the transmissivity, and the applied voltage signal, and the wavelength parameter selected. The key features of the proposal approach is as follows: (1) the device is mainly composed of very thin electrically modulating refractive-index architecture, which are generally two basic FP interferometers connected closely so as to accurately perform the choice of the wavelength desired in the spectral range by the interference filtering; and (2) the depths of the two FP interferometers are designed to be different, and through combination two parts mention ed above we can obtain some single wavelength desired of penetrating beam. The proposed device is being produced currently. The final device will be used to sequentially choose each desired infrared (IR) wavelength from incident IR radiation.

Citation Download Citation

Anbang Fu, Huaidong Zhang, Xinyu Zhang, Hongshi Sang, and Changsheng Xie "An electrically controlled liquid crystal Fabry-Perot hyperspectral imaging chip in mid-infrared region", Proc. SPIE 8907, International Symposium on Photoelectronic Detection and Imaging 2013: Infrared Imaging and Applications, 89074A (11 September 2013); https://doi.org/10.1117/12.2034687

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
7 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Interferometers

Electrodes

Liquid crystals

Refractive index

Infrared radiation

Transmittance

Aluminum

Show All Keywords

Keywords/Phrases

Search In:

Publication Years