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Proceedings Paper

Displaying the energy distribution of Airy disk on an oscilloscope
Author(s): Wenliang Gao
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Paper Abstract

The energy distribution of Airy disk includes a lot of usef ul information of optical systems, through researchers and engineers in the field have developed several kinds of systems to measure the distribution < )). More convenient and low cost system is still required for general optics-related lab. In this paper , a microprocessor-based system for displaying three dimensional energy distribution of Airy disk on oscilloscope is discribed. A laser beam (to be measured ) goes on to a linear CCD camera which is on a table driven by a stepping motor. The output of the camera is received by a signal condition ing circuit and then to an A/D converter which is one of the interfaces of the microprocessor . CCD sensor drive and control , signal processing and signal output to an oscilloscope through D/ A converter is the task of the microprocessor. The sensor pixel area is l 4µm X 14µm , the resolution in X direction is 14µm , a superresolution arithematic method is emploied in Y direction , it leads to 2µm resolution , the method is discribed in detail in this paper. An experimental setup has also been developed • the Airy disk of a 0. 1mm diameter microhole dif fraction pattern has been measured with this setup , the resu lt has been analysed.

Paper Details

Date Published: 22 April 1993
PDF: 7 pages
Proc. SPIE 1834, Laser Energy Distribution Profiles: Measurement and Applications, (22 April 1993); doi: 10.1117/12.143865
Show Author Affiliations
Wenliang Gao, Hangzhou Institute of Engineering and Technology (United States)

Published in SPIE Proceedings Vol. 1834:
Laser Energy Distribution Profiles: Measurement and Applications
James M. Darchuk, Editor(s)

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