Improved design principle of Dyson concentric infrared imaging spectrometer

Qian Zhou; Peng Yan; Zhijie Yang; Kai Ni; Xinghui Li; Xiaohao Wang

doi:10.1117/12.2517532

7 March 2019 Improved design principle of Dyson concentric infrared imaging spectrometer

Qian Zhou, Peng Yan, Zhijie Yang, Kai Ni, Xinghui Li, Xiaohao Wang

Proceedings Volume 11053, Tenth International Symposium on Precision Engineering Measurements and Instrumentation; 1105312 (2019) https://doi.org/10.1117/12.2517532
Event: 10th International Symposium on Precision Engineering Measurements and Instrumentation (ISPEMI 2018), 2018, Kunming, China

Abstract

Dyson concentric configuration has advantages of 1:1 magnification ratio, compact size, light mass, large numerical aperture, less smile and distortion. However, volume of initial structure calculated by two-wavelength astigmatism method is relatively large. Meanwhile, we only obtain one smaller structure for long wavelength infrared range through another improved method widening aberrations. In this paper, we proposed improved design principle of Dyson concentric push-broom infrared imaging spectrometer, which can calculate all smaller initial Dyson structures satisfying requirements of spectral range and resolution in different infrared wavebands. First, obtain initial grating groove density using two-wavelength astigmatism. Then widening aberration, search all of initial Dyson structures satisfying ideal imaging condition under 1 to 10 times of initial grating groove density. Lastly, select infrared materials and detectors suitable for short infrared, medium-wave infrared and long-wave infrared wavebands respectively to demonstrate feasibility of this new method. As results shown, volume of Dyson configuration has reduced about 60% in short-wave infrared waveband, 77% in mid-wave infrared waveband, about 50% in long-wave infrared waveband. So improved design principle proposed in this paper benefits for infrared concentric imaging spectrometer. © 2018 Optical Society of America.

Citation Download Citation

Qian Zhou, Peng Yan, Zhijie Yang, Kai Ni, Xinghui Li, and Xiaohao Wang "Improved design principle of Dyson concentric infrared imaging spectrometer", Proc. SPIE 11053, Tenth International Symposium on Precision Engineering Measurements and Instrumentation, 1105312 (7 March 2019); https://doi.org/10.1117/12.2517532

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