Black optical coating for high-power laser measurements from carbon nanotubes and silicate
Christopher L. Cromer, Katie Hurst, Xiaoyu X. Li, John H. Lehman
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.
, Hurst, K.
, Li, X.
and Lehman, J.
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 December 3, 2023)