Unusual surface reliefs from photoinduced creeping and aggregation behavior of azopolymer

Seungwoo Lee, Yong Cheol Jeong, Jung Ki Park

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)


We report the spontaneous formation of unusual surface reliefs, in which two sets of sinusoidal gratings were hierarchically structured, merely by single-step holographic inscription on amorphous azopolymer films. By monitoring of growth behavior of surface reliefs during holographic inscription, we found that the formation of additional grating is caused by the creeping and resulting aggregation of dome structures. Our direct observation of creeping and aggregation behavior is expected to contribute to enhancing the understanding of unusual surface reliefs, and also in fabricating complex surface reliefs.

Original languageEnglish
Article number031912
JournalApplied Physics Letters
Issue number3
Publication statusPublished - 2008

Bibliographical note

Funding Information:
This research was supported by a grant (08K1501-01210) from Center for Nanostructured Materials Technology under 21st Century Frontier R&D Programs of the Ministry of Education, Science and Technology, Korea.

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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