Database of average-power damage thresholds at 1064 nm

Conference · Mon Dec 14 04:00:00 EST 1987

OSTI ID:5683686

Rainer, F; Hildum, E A; Milam, D

We have completed a database of average-power, laser-induced, damage thresholds at 1064 nm on a variety of materials. Measurements were made with a newly constructed laser to provide design input for moderate and high average-power laser projects. The measurements were conducted with 16-ns pulses at pulse-repetition frequencies ranging from 6 to 120 Hz. Samples were typically irradiated for time ranging from a fraction of a second up to 5 minutes (36,000 shots). We tested seven categories of samples which included antireflective coatings, high reflectors, polarizers, single and multiple layers of the same material, bare and overcoated metal surfaces, bare polished surfaces, and bulk materials. The measured damage threshold ranged from < 1 J/cm/sup 2/ for some metals to > 46 J/cm/sup 2/ for a bare polished glass substrate. 4 refs., 7 figs., 1 tab.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5683686
• Report Number(s): UCRL-97801; CONF-8710165-4; ON: DE88004352
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360106* -- Metals &amp; Alloys-- Radiation Effects
360206 -- Ceramics
Cermets
&amp; Refractories-- Radiation Effects
360605 -- Materials-- Radiation Effects
ANTIREFLECTION COATINGS
BEAMS
COATINGS
DAMAGE
DATA BASE MANAGEMENT
DEPOSITION
DOSES
ELECTROMAGNETIC RADIATION
ELEMENTS
FILMS
GLASS
LASER MATERIALS
LASER RADIATION
MANAGEMENT
MATERIALS
MATERIALS TESTING
METALS
MIRRORS
PULSES
RADIATION DOSES
RADIATIONS
REFLECTIVE COATINGS
SURFACES
TESTING
THIN FILMS
THRESHOLD DOSE