Laser Interferometer Techniques for Inspection of Optical Components

reportActive / Technical Report | Accession Number: ADA363235 | Open PDF

Abstract:

A method employing laser interferometry was used for detecting inhomogeneities of refraction index in optical glass prior to use in optical fabrication. A Twyman-Green interferometer configuration using a laser source was constructed. System errors were removed by a Moire technique. Samples of A, B, C and D glass were introduced into one of the beams and the resultant fringe patterns analyzed to obtain the magnitude of the index of refraction variations.

Author(s):
Kopacz, Stanley P.
Author Organization(s):
FRANKFORD ARSENAL PHILADELPHIA PA FIRECONTROL DEVELOPMENT AND ENGINEER ING DIRECTORATE
Descriptive Note:
Research rept.
Supplementary Note:
DOI: 10.21236/ADA363235
Pagination:
0014

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
FA-TR-75070, RIA-76-U303
Monitor Series:
76-U303, FA
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.2_Understand
Communities of Interest:
Engineered Resilient Systems
Descriptor(s):
*LASERS, *OPTICAL INTERFEROMETERS, REFRACTIVE INDEX, OPTICAL GLASS
Field(s)/Group(s):
Lasers and Masers, Optics
Keyword(s):
TWYMAN GREEN INTERFEROMETERS
Report Date:
1975 Sep 01
Creation Date:
1999 Jun 02