Formation of Subwavelength Grating on Molybdenum Mirrors Using a Femtosecond Ti:sapphire Laser System Operating at 10 Hz
Journal Article
·
· Review of Scientific Instruments
We report formation of subwavelength surface grating over large surface area of molybdenum mirror by multiple irradiation of amplified femtosecond laser pulses from a homemade Ti:sapphire oscillator-amplifier laser system in a raster scan configuration. The laser system delivered 2 mJ, 80 fs duration laser pulses at a pulse repetition rate of 10 Hz. Various parameters such as pulse fluence, number of pulses, laser polarization, scan speed, and scan steps were optimized to obtain uniform subwavelength gratings. Energy dispersive x-ray spectroscopy measurements were conducted to analyze the elemental composition of mirror surfaces before and after laser treatment.
- Research Organization:
- BROOKHAVEN NATIONAL LABORATORY (BNL)
- Sponsoring Organization:
- DOE - OFFICE OF SCIENCE
- DOE Contract Number:
- AC02-98CH10886
- OSTI ID:
- 1019463
- Report Number(s):
- BNL--94913-2011-JA; KA-04
- Journal Information:
- Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 3 Vol. 82; ISSN 0034-6748; ISSN RSINAK
- Country of Publication:
- United States
- Language:
- English
Similar Records
A power amplifier for a femtosecond terawatt Cr:forsterite laser system
Journal Article
·
Wed Apr 30 00:00:00 EDT 2008
· Quantum Electronics (Woodbury, N.Y.)
·
OSTI ID:21466788