Please use this identifier to cite or link to this item: http://dl.umsu.ac.ir/handle/10722/90823
Title: Resolution improvement of one-dimensional comb-type PSD by subdivision
Authors: Lin, B;Qi, X;Cao, X;Long, R;Tan, C;Lin, M
subject: Array;Grating;Position Sensitive Detector;Subdivision
Year: 2006
Publisher: S P I E - International Society for Optical Engineering. The Journal's web site is located at http://www.spie.org/app/Publications/index.cfm?fuseaction=proceedings
Description: Implementation of a 4 by 1 comb-type Position sensitive detector (PSD) array for position sensing applications is presented. Unlike conventional application, we utilize the method of subdivision to increase the resolution of PSD beyond the feature of photosensitive area, which is presented periodically. To obtain output signal of comb-type PSD, classic grating subdivision circuit is used. Resolution of 6.25 μm of comb-type PSD is achieved using optical grating array of a 50 μm in pitch and signal power of 3mW. The resolution is limited by the spacing of comb-type PSD and the mismatch of position of PSD array and optical grating array.
URI: http://www.scopus.com/mlt/select.url?eid=2-s2.0-33645337374&selection=ref&src=s&origin=recordpage
http://hub.hku.hk/handle/10722/90823
Standard no: Proceedings of SPIE - The International Society for Optical Engineering, 2006, v. 6150 I
10.1117/12.677971
0277-786X
eid_2-s2.0-33645337374
6150 I
Appears in Collections:Department of Anatomy

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