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
absolute responsivity, carbon nanotubes, dielectric function, thermal diffusivity