Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/82058
Title: Co2-Laser-Induced Regular Periodic Structures on Glass Substrates
Authors: Peng, Y.
An, C.
Hong, M.
Lu, Y. 
Chong, T.-C. 
Keywords: CO2 laser Irradiation
Glass surface
Parameter dependence
Regular periodic structure
Scanning
Issue Date: Nov-2003
Source: Peng, Y.,An, C.,Hong, M.,Lu, Y.,Chong, T.-C. (2003-11). Co2-Laser-Induced Regular Periodic Structures on Glass Substrates. Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers 42 (11) : 6920-6925. ScholarBank@NUS Repository.
Abstract: A CW CO2 laser was used to induce regular and tidy periodic structures on glass substrates. It is experimentally shown that the wave vector of the ripples is perpendicular to the recording polarization irrespective of the scanning direction. The occurrence of periodic structures is highly sensitive to laser power level and scanning velocity. To obtain appropriate periodic patterns, a combined condition of laser power and scanning velocity must be satisfied. Different directions of laser scanning lead to different occurrence areas. Different kinds of materials seem to develop the occurrence areas with almost similar shape, but their relative positions and dimensions may be different. The maximum laser scanning velocity range to form regular and tidy periodic structures appears at the optimum power condition. Moreover, the maximum period could be obtained at this optimum condition.
Source Title: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
URI: http://scholarbank.nus.edu.sg/handle/10635/82058
ISSN: 00214922
Appears in Collections:Staff Publications

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