Optical absorption measurement system

Patent · Wed Sep 17 00:00:00 EDT 1986

OSTI ID:6040392

Draggoo, V G; Morton, R G; Sawicki, R H; Bissinger, H D

The system of the present invention contemplates a non-intrusive method for measuring the temperature rise of optical elements under high laser power optical loading to determine the absorption coefficient. The method comprises irradiating the optical element with a high average power laser beam, viewing the optical element with an infrared camera to determine the temperature across the optical element and calculating the absorption of the optical element from the temperature.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• Assignee: Dept. of Energy
• Patent Number(s): 4,868,768
• Application Number: 06/908,482, ON: DE88000868
• OSTI ID: 6040392
• Resource Relation: Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
47 OTHER INSTRUMENTATION
OPTICAL EQUIPMENT
ABSORPTION
TEMPERATURE MEASUREMENT
ACCURACY
CAMERAS
COATINGS
DESIGN
INFRARED RADIATION
LASERS
REFRACTIVITY
SUBSTRATES
T CODES
THERMAL DEGRADATION
THERMAL STRESSES
COMPUTER CODES
ELECTROMAGNETIC RADIATION
EQUIPMENT
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
RADIATIONS
STRESSES
420200* - Engineering- Facilities
Equipment
& Techniques
440300 - Miscellaneous Instruments- (-1989)