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Title: High speed two-dimensional optical beam position detector

Abstract

Disclosed is the design of a high speed two-dimensional optical beam position detector which outputs the X and Y displacement and total intensity linearly. The experimental detector measures the displacement from DC to 123 MHz and the intensity of an optical spot in a similar way as a conventional quadrant photodiode detector. The design uses four discrete photodiodes and simple dedicated optics for the position decomposition which enables higher spatial accuracy and faster electronic processing than conventional detectors. Measurements of the frequency response and the spatial sensitivity demonstrate high suitability for atomic force microscopy, scanning probe data storage applications, and wideband wavefront sensing. The operation principle allows for position measurements up to 20 GHz and more in bandwidth.

Authors:
 [1]
  1. Maypa B.V., Bijsters 2, 5131 NW, Alphen (Netherlands)
Publication Date:
OSTI Identifier:
22063688
Resource Type:
Journal Article
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 82; Journal Issue: 7; Other Information: (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0034-6748
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ACCURACY; ATOMIC FORCE MICROSCOPY; BEAM POSITION; FREQUENCY MEASUREMENT; GHZ RANGE; IMAGE PROCESSING; MHZ RANGE; OPTICS; PHOTODIODES; SENSITIVITY; TWO-DIMENSIONAL CALCULATIONS

Citation Formats

Rutten, Paul Edmond. High speed two-dimensional optical beam position detector. United States: N. p., 2011. Web. doi:10.1063/1.3608506.
Rutten, Paul Edmond. High speed two-dimensional optical beam position detector. United States. doi:10.1063/1.3608506.
Rutten, Paul Edmond. Fri . "High speed two-dimensional optical beam position detector". United States. doi:10.1063/1.3608506.
@article{osti_22063688,
title = {High speed two-dimensional optical beam position detector},
author = {Rutten, Paul Edmond},
abstractNote = {Disclosed is the design of a high speed two-dimensional optical beam position detector which outputs the X and Y displacement and total intensity linearly. The experimental detector measures the displacement from DC to 123 MHz and the intensity of an optical spot in a similar way as a conventional quadrant photodiode detector. The design uses four discrete photodiodes and simple dedicated optics for the position decomposition which enables higher spatial accuracy and faster electronic processing than conventional detectors. Measurements of the frequency response and the spatial sensitivity demonstrate high suitability for atomic force microscopy, scanning probe data storage applications, and wideband wavefront sensing. The operation principle allows for position measurements up to 20 GHz and more in bandwidth.},
doi = {10.1063/1.3608506},
journal = {Review of Scientific Instruments},
issn = {0034-6748},
number = 7,
volume = 82,
place = {United States},
year = {2011},
month = {7}
}