Computational imaging in mid-infrared waveband hybrid imaging optical system under wide temperature range

Peiqi Yuan; Tao Lai; Nie Huaile; Yufeng Tang; Yichen Song; Shan Mao

doi:10.1117/12.2661844

12 April 2023 Computational imaging in mid-infrared waveband hybrid imaging optical system under wide temperature range

Peiqi Yuan, Tao Lai, Nie Huaile, Yufeng Tang, Yichen Song, Shan Mao

Proceedings Volume 12565, Conference on Infrared, Millimeter, Terahertz Waves and Applications (IMT2022); 1256511 (2023) https://doi.org/10.1117/12.2661844
Event: Conference on Infrared, Millimeter, Terahertz Waves and Applications (IMT2022), 2022, Shanghai, China

Abstract

Diffractive optical element (DOE) has special dispersion and temperature characteristics, which makes them widely used in optical systems that require both athermalization and achromatic aberrations correction. The multi-layer DOE (MLDOE) can improve the diffraction efficiency overall the broad waveband, but its diffraction efficiency decreases with ambient temperature changing. When the ambient temperature changes, the micro-structure heights and the refractive index of the substrate materials of MLDOE change, ultimately affecting the optical transform function (OTF). In this paper, the influence of ambient temperature on the diffraction efficiency of MLDOE is proposed and its relationship is derived, a computational imaging method that combines optical design and image restoration is proposed. Finally, a mid-infrared waveband infrared optical system with athermalization and achromatic aberrations corrected based on this method is designed. Results show that this method can effectively improve the imaging quality of refractive-diffractive hybrid optical systems.

Citation Download Citation

Peiqi Yuan, Tao Lai, Nie Huaile, Yufeng Tang, Yichen Song, and Shan Mao "Computational imaging in mid-infrared waveband hybrid imaging optical system under wide temperature range", Proc. SPIE 12565, Conference on Infrared, Millimeter, Terahertz Waves and Applications (IMT2022), 1256511 (12 April 2023); https://doi.org/10.1117/12.2661844

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