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

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Author(s): Christopher L. Cromer; Katie Hurst; Xiaoyu X. Li; John H. Lehman;
Title: Black optical coating for high-power laser measurements from carbon nanotubes and silicate
Published: January 15, 2009
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
Pages: pp. 193 - 195
Keywords: carbon nanotube; laser damage; potassium silicate; thermal detector; water glass
Research Areas: Advanced Materials
PDF version: PDF Document Click here to retrieve PDF version of paper (198KB)