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Black optical coating for high-power laser measurements from carbon nanotubes and silicate

Published

Author(s)

Christopher L. Cromer, Katie Hurst, Xiaoyu X. Li, John H. Lehman

Abstract

We describe a coating based on potassium silicate, commonly known as water glass, and multiwall carbon nanotubes. The coating has a high absorbance (0.96 at 1064 nm in wavelength) and a laser damage threshold that is comparable to that of ceramic coatings presently used for commercial thermopiles for high-power laser measurements. In addition to a potassium silicate-based coating we discuss sodium silicate, lithium silicate, and a commercially available ceramic coating. We document the coating process and experiments that demonstrate that the laser damage threshold at 1064 nm is greater than 10 kW/cm2.
Citation
Optics Letters
Volume
34
Issue
2

Keywords

carbon nanotube, laser damage, potassium silicate, thermal detector, water glass

Citation

Cromer, C. , Hurst, K. , Li, X. and Lehman, J. (2009), Black optical coating for high-power laser measurements from carbon nanotubes and silicate, Optics Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=33195 (Accessed June 24, 2024)

Issues

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Created January 15, 2009, Updated February 19, 2017