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Title: Laser synchronized high-speed shutter for spectroscopic application

Abstract

A fast mechanical shutter, based on rotating chopper wheels, has been designed and implemented to shutter the entrance slit of a spectrograph. This device enables an exposure time of 9 .mu.s to be achieved for a 0.8 mm wide spectrograph entrance slit, achieves 100% transmission in the open state, and an essentially infinite extinction ratio. The device further incorporates chopper wheel position sensing electronics to permit the synchronous triggering of a laser source.

Inventors:
 [1];  [1];  [2];  [2]
+ Show Inventor Affiliations
  1. Tracy, CA
  2. Livermore, CA
Issue Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
OSTI Identifier:
874846
Patent Number(s):
6472657
Assignee:
Sandia Corporation (Livermore, CA)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01J - MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT
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DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
laser; synchronized; high-speed; shutter; spectroscopic; application; fast; mechanical; based; rotating; chopper; wheels; designed; implemented; entrance; slit; spectrograph; device; enables; exposure; time; achieved; 08; wide; achieves; 100; transmission; essentially; infinite; extinction; ratio; incorporates; wheel; position; sensing; electronics; permit; synchronous; triggering; source; laser source; exposure time; /250/396/

Citation Formats

Miles, Paul C, Porter, Eldon L, Prast, Thomas L, and Sunnarborg, Duane A. Laser synchronized high-speed shutter for spectroscopic application. United States: N. p., 2002. Web.
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Miles, Paul C, Porter, Eldon L, Prast, Thomas L, & Sunnarborg, Duane A. Laser synchronized high-speed shutter for spectroscopic application. United States.
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Miles, Paul C, Porter, Eldon L, Prast, Thomas L, and Sunnarborg, Duane A. Tue . "Laser synchronized high-speed shutter for spectroscopic application". United States. https://www.osti.gov/servlets/purl/874846.
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@article{osti_874846,
title = {Laser synchronized high-speed shutter for spectroscopic application},
author = {Miles, Paul C and Porter, Eldon L and Prast, Thomas L and Sunnarborg, Duane A},
abstractNote = {A fast mechanical shutter, based on rotating chopper wheels, has been designed and implemented to shutter the entrance slit of a spectrograph. This device enables an exposure time of 9 .mu.s to be achieved for a 0.8 mm wide spectrograph entrance slit, achieves 100% transmission in the open state, and an essentially infinite extinction ratio. The device further incorporates chopper wheel position sensing electronics to permit the synchronous triggering of a laser source.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 2002},
month = {Tue Jan 01 00:00:00 EST 2002}
}
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Works referenced in this record:

A fast mechanical shutter for spectroscopic applications
journal, March 2000

High-speed electromechanical shutter for vision research
journal, September 1998

An ultrafast mechanical shutter for X-rays
journal, February 1989

  • LeGrand, Alan D.; Schildkamp, Wilfried; Blank, Basil
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 275, Issue 2, p. 442-446
  • https://doi.org/10.1016/0168-9002(89)90722-5
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