Nanostructured surfaces for tuned infrared emission for spectroscopic applications

James T. Daly; Anton C. Greenwald; Edward A. Johnson; William A. Stevenson; John A. Wollam; Thomas George; Eric W. Jones

doi:10.1117/12.382797

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17 April 2000 Nanostructured surfaces for tuned infrared emission for spectroscopic applications

James T. Daly, Anton C. Greenwald, Edward A. Johnson, William A. Stevenson, John A. Wollam, Thomas George, Eric W. Jones

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Proceedings Volume 3937, Micro- and Nano-photonic Materials and Devices; (2000) https://doi.org/10.1117/12.382797
Event: Symposium on Integrated Optoelectronics, 2000, San Jose, CA, United States

Abstract

Thermal emission from heated materials follows the blackbody curve, multiplied by emissivity. Emissivity may be, but is not usually a strong function of wavelength. Ion Optics has developed a variety of surface texturing processes that create specific nano-structures which alter the emissivity in predictable fashion. Random structures produced by ion beam etching create long and/or short wavelength cutoffs. Repeated patterns produced by fine-line lithography, resembling photonic bandgap materials, have large peaks in the emitted spectrum. The central wavelength and bandwidth for lithographic structures can be varied with geometry. FWHM values for ((Delta) (lambda) /(lambda) ) are less than 0.1. These light sources reduce power requirements for applications now using broadband sources with filters, and in some cases entirely eliminate the need for filters.

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James T. Daly, Anton C. Greenwald, Edward A. Johnson, William A. Stevenson, John A. Wollam, Thomas George, and Eric W. Jones "Nanostructured surfaces for tuned infrared emission for spectroscopic applications", Proc. SPIE 3937, Micro- and Nano-photonic Materials and Devices, (17 April 2000); https://doi.org/10.1117/12.382797

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