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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]
  1. (Tracy, CA)
  2. (Livermore, CA)
Issue Date:
Research Org.:
SANDIA CORP
OSTI Identifier:
874846
Patent Number(s):
6472657
Assignee:
Sandia Corporation (Livermore, CA) SNL
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.
Miles, Paul C., Porter, Eldon L., Prast, Thomas L., & Sunnarborg, Duane A. Laser synchronized high-speed shutter for spectroscopic application. United States.
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.
@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 = {2002},
month = {1}
}

Patent:

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