Spectral enhancement of thermal radiation by laser fabricating grating structure on nickel surface*
Liu Song, Liu Shi-Bing†
       
(a)–(e) The normalized thermal radiation spectra of grating surface with grating periods of 20 μm, 15 μm, 10 μm, 7 μm, and 5 μm, respectively. (f) The normalized thermal radiation spectrum of the polished surface of nickel targets.