Ramadurai, K.
, Lewis, L.
, Cromer, C.
, Mahajan, R.
, Hurst, K.
and Lehman, J.
(2006),
Carbon Based Coatings for Thermal Detectors: Laser Damage and Thermal Efficiency, Annual Symposium on Optical Materials for High Power Lasers, Boulder, CO, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=32531
(Accessed April 23, 2024)
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Carbon Based Coatings for Thermal Detectors: Laser Damage and Thermal Efficiency
Published
Author(s)
, Laura H. Lewis, , Roop Mahajan, ,
Abstract
The laser damage threshold and absorption efficiency of a variety of carbon based thermal coatings for laser power and energy measurements have been investigated. Carbon based paint, carbon fibers as well as single wall carbon nanotubes (SWCNTs) and multiwall carbon nanotubes (MWCNTs) were applied to a water cooled copper substrate. The heating of the water was measured to determine power absorbed by the sample during laser exposure. Before and after exposure to 10.6 ??m laser radiation, optical and electron microscopy as well as Raman spectroscopy were employed to evaluate the coating topology and composition. These early measurement results demonstrate that a MWCNT coating has a damage threshold of approximately 1686 W/cm2, which is four times greater than that measured for SWCNTs and fifteen times greater than that of carbon based paint.Proceedings Title
Annual Symposium on Optical Materials for High Power Lasers
Conference Dates
September 25-27, 2006
Conference Location
Boulder, CO
Conference Title
Boulder Damage Symposium XXXVIII
Pub Type
Conferences
Download Paper
Keywords
carbon nanotubes, laser damage, Raman spectroscopy, thermal detector
Citation
Created September 25, 2006, Updated January 27, 2020