Application of carbon nanotube coatings for laser measurements

Published

October 17, 2005

Author(s)

John H. Lehman, Paul Rice, Natalia Varaksa, Chaiwat Engtrakul, Anne Dillon

Abstract

We have demonstrated coatings based on carbon nanotubes (CNTs) on a variety of detector platforms for laser power and energy measurement standards. These coatings must be resistant to damage and aging while maintaining desirable optical and thermal properties over a range of laser wavelengths served by our calibration services (0.157 ?m to 10.6 ?m). To investigate the optical properties of these coatings we have employed a variety of techniques that rely on fundamental detector properties. We describe the process by which we produce CNTs and apply them to thermal detectors, including laser vaporization and chemical vapor deposition on detector materials such as LiTaO₃, LiNbO₃ and copper. We describe additional novel processing steps that include surface preparation, the deposition of a barrier layer and excimer-laser (248 nm) laser post processing. This presentation will summarize various results that we have presented elsewhere.

Conference Dates

October 17-19, 2005

Conference Location

Boulder, CO

Conference Title

1st NanoScience & Applications Conference

Pub Type

Conferences

Keywords

absolute responsivity, carbon nanotubes, dielectric function, thermal diffusivity

Citation

Lehman, J. , Rice, P. , Varaksa, N. , Engtrakul, C. and Dillon, A. (2005), Application of carbon nanotube coatings for laser measurements, 1st NanoScience & Applications Conference, Boulder, CO (Accessed October 7, 2025)