Frequency Selective Surfaces as Near Infrared Electro-Magnetic Filters for Thermophotovoltaic Spectral Control

Kristensen, Ryan T. ; Beausang, John F. ; DePoy, David M.

Lockheed Martin

关键词: 30 Direct Energy Conversion;    Absorption;    42 Engineering;    Thermal Radiation;    Electromagnetic Radiation;   

DOI  :  10.2172/822277
RP-ID  :  LM-03K128
RP-ID  :  AC12-00SN39357
RP-ID  :  822277

美国|英语

来源: UNT Digital Library

【 摘 要 】

Frequency selective surfaces (FSS) effectively filter electromagnetic radiation in the microwave band (1mm to 100mm). Interest exists in extending this technology to the near infrared (1 {micro}m to 10 {micro}m) for use as a filter of thermal radiation in thermophotovoltaic (TPV) direct energy conversion. This paper assesses the ability of FSS to meet the strict spectral performance requirements of a TPV system. Inherent parasitic absorption, which is the result of the induced currents in the FSS metallization, is identified as a significant obstacle to achieving high spectral performance.