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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 8, Iss. 12 — Dec. 10, 2010
  • pp: 1203–1206

Fabrication and enhanced optical absorption of submicrometer pits array on 6H-SiC via two-beam interference of femtosecond laser

Yi Zhang, Xin Jia, Pingxin Xiong, and Tianqing Jia  »View Author Affiliations


Chinese Optics Letters, Vol. 8, Issue 12, pp. 1203-1206 (2010)


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Abstract

We report the fabrication of submicrometer pits array (SP-array) on 6H-SiC surface by the interference of two femtosecond laser beams. Formation mechanisms and optical absorption of SP-array are studied. The relative reflectivity and transmissivity of white light decrease to 10% of the values of SiC crystal, and the optical absorption is enhanced to 97%. The relative reflectivity and transmissivity of incident angles within the range of 20o~60o are kept below 25%. The enhancement mechanism of optical absorption of the SP-array is also discussed.

© 2010 Chinese Optics Letters

OCIS Codes
(320.7130) Ultrafast optics : Ultrafast processes in condensed matter, including semiconductors
(110.4235) Imaging systems : Nanolithography
(220.4241) Optical design and fabrication : Nanostructure fabrication

Citation
Yi Zhang, Xin Jia, Pingxin Xiong, and Tianqing Jia, "Fabrication and enhanced optical absorption of submicrometer pits array on 6H-SiC via two-beam interference of femtosecond laser," Chin. Opt. Lett. 8, 1203-1206 (2010)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-8-12-1203


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