Application of dot-matrix illumination of liquid crystal phase space light modulator in 3D imaging of APD array

Shuai Wang; Huayan Sun; Huichao Guo

doi:10.1117/12.2283338

2 January 2018 Application of dot-matrix illumination of liquid crystal phase space light modulator in 3D imaging of APD array

Shuai Wang, Huayan Sun, Huichao Guo

Author Affiliations +

Proceedings Volume 10456, Nanophotonics Australasia 2017; 104564C (2018) https://doi.org/10.1117/12.2283338
Event: SPIE Nanophotonics Australasia, 2017, Melbourne, Australia

Abstract

Aiming at the problem of beam scanning in low-resolution APD array in three-dimensional imaging, a method of beam scanning with liquid crystal phase-space optical modulator is proposed to realize high-resolution imaging by low-resolution APD array. First, a liquid crystal phase spatial light modulator is used to generate a beam array and then a beam array is scanned. Since the sub-beam divergence angle in the beam array is smaller than the field angle of a single pixel in the APD array, the APD's pixels respond only to the three-dimensional information of the beam illumination position. Through the scanning of the beam array, a single pixel is used to collect the target three-dimensional information multiple times, thereby improving the resolution of the APD detector. Finally, MATLAB is used to simulate the algorithm in this paper by using two-dimensional scalar diffraction theory, which realizes the splitting and scanning with a resolution of 5 x 5. The feasibility is verified theoretically.

Citation Download Citation

Shuai Wang, Huayan Sun, and Huichao Guo "Application of dot-matrix illumination of liquid crystal phase space light modulator in 3D imaging of APD array", Proc. SPIE 10456, Nanophotonics Australasia 2017, 104564C (2 January 2018); https://doi.org/10.1117/12.2283338

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

Avalanche photodetectors

Liquid crystals

Phase shift keying

Modulation

Modulators

Diffraction gratings

Image resolution

Show All Keywords

Keywords/Phrases

Search In:

Publication Years