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Heat-insulation film with gold layer deposited on antireflection subwavelength-structured surface |
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| Authors: | Chia-Jen Ting Chin-Ju Hsu |
| Affiliation: | a Mechanical and Systems Research Laboratories, Industrial Technology Research Institute, Hsinchu, 310 Taiwan, ROC b Department of Mechanical Engineering, National Central University, Jhongli, Taiwan, ROC c Institute of Opto-Mechatronics Engineering, National Central University, Jhongli, Taiwan, ROC |
| Abstract: | The optical properties of gold layer deposited on antireflection subwavelength-structured surface are first exposed. The experimental results of the reflectances and transmittances for several different thicknesses of gold-deposited layers on the subwavelength structures are carried out. The nanostructured surface with spatial period and a diameter of about 230 nm and height of about 150 nm on polyethylene terphthalate (PET) film is fabricated by micro-replication process of UV imprinting. Comparing these with the bare gold-deposited layer and bare nanostructure, the results show that the optical films with the suitable gold layer deposited on antireflection subwavelength-structured surface has high transmittance and low glare in the visible spectral range and high reflectance in the infrared range. That is to say, when the antireflection subwavelength-structured surface is coated with a gold layer of several tens of nm thickness, it will have some unique optical characters. |
| Keywords: | Subwavelength structure Nanostructure Heat-insulation film Antireflection Gold-deposited layer |
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