98
M. Zhong and P. Fan
Fig. 2.24 Reflectance of ultrafast laser-produced SMNS on Cu as a function of wavelength (I is
short for scanning intervals). The inset shows the photographs of polished Cu (on the left) and
blackened Cu (on the right) samples. Reproduced from [56] with permission from The Optical
Society
Fig. 2.25 a Hemispherical reflectance of original Cu and “black” Cu surfaces in mid-infrared
regions; b specular reflectance of original Cu and “black” Cu surfaces in far-infrared regions;
c average reflectance of ultrafast laser fabricate Cu SMNS in different wavelength ranges.
Reproduced from [60] with permission from Chinese Laser Press
of metal surfaces in the UV–VIS, UV-NIR, UV-MIR, and UV-FIR regions have
been reduced down to around 2%, 6%, 5%, and 8%, respectively, exhibiting ultrabroadband highly effective antireflection properties (see Fig. 2.25c). Besides, these
antireflection performances show little change within the incident angle range of
0–60°. To the best of our knowledge to date, this is the broadest and the most stable
optical antireflection performances ever reported on metal surfaces.
For the sake of practical applications, we performed different aging tests for the
ultrafast fabricated ultrabroadband antireflection SMNS, including the high temperature aging, the Xe light aging, and the salt spray aging tests. No apparent changes in
the structural features and chemical compositions have been observed after the tests.
M. Zhong and P. Fan
Fig. 2.24 Reflectance of ultrafast laser-produced SMNS on Cu as a function of wavelength (I is
short for scanning intervals). The inset shows the photographs of polished Cu (on the left) and
blackened Cu (on the right) samples. Reproduced from [56] with permission from The Optical
Society
Fig. 2.25 a Hemispherical reflectance of original Cu and “black” Cu surfaces in mid-infrared
regions; b specular reflectance of original Cu and “black” Cu surfaces in far-infrared regions;
c average reflectance of ultrafast laser fabricate Cu SMNS in different wavelength ranges.
Reproduced from [60] with permission from Chinese Laser Press
of metal surfaces in the UV–VIS, UV-NIR, UV-MIR, and UV-FIR regions have
been reduced down to around 2%, 6%, 5%, and 8%, respectively, exhibiting ultrabroadband highly effective antireflection properties (see Fig. 2.25c). Besides, these
antireflection performances show little change within the incident angle range of
0–60°. To the best of our knowledge to date, this is the broadest and the most stable
optical antireflection performances ever reported on metal surfaces.
For the sake of practical applications, we performed different aging tests for the
ultrafast fabricated ultrabroadband antireflection SMNS, including the high temperature aging, the Xe light aging, and the salt spray aging tests. No apparent changes in
the structural features and chemical compositions have been observed after the tests.