Fabrication of highly rotational symmetric quasi-periodic structures by multiexposure of a three-beam interference technique.

Fabrication of highly rotational symmetric quasi-periodic structures by multiexposure of a three-beam interference technique. Research Abstract Details 

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Fabrication of highly rotational symmetric quasi-periodic structures by multiexposure of a three-beam interference technique. Abstract Text:

Ngoc Diep Lai,Jian Hung Lin,Chia Chen Hsu,Ngoc Diep Lai,Jian Hung Lin,Chia Chen Hsu,

A simple and efficient interference method for fabricating highly symmetric two-dimensional (2-D) quasi-periodic structures (QPSs) is theoretically and experimentally demonstrated. With a three-beam interference technique, one can fabricate a periodic 2-D structure having sixfold symmetry. When this structure is multiduplicated into other specific orientations its combination results in a QPS with multifold symmetry. By use of n exposures with a rotation angle of 60 degrees /n, one can create a 2-D QPS with six n-fold symmetry. The QPS with a super high symmetry level, as high as 60-fold, is demonstrated for the first time to the best of our knowledge. The diffraction pattern of a QPS is consistent with the Fourier transform calculation. The fabricated structures should be useful for many applications, such as isotropic bandgap materials and extraction enhancement of light-emitting diodes.

Fabrication of highly rotational symmetric quasi-periodic structures by multiexposure of a three-beam interference technique. Publishing Authors By Initials

ND Lai,JH Lin,CC Hsu,ND Lai,JH Lin,CC Hsu,

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Fabrication of highly rotational symmetric quasi-periodic structures by multiexposure of a three-beam interference technique. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Applied optics

VOLUME: 46

Page Numbers: 5645-8

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ISSN: 0003-6935

DAY: 10

MONTH: Aug

YEAR: 2007

Fabrication of highly rotational symmetric quasi-periodic structures by multiexposure of a three-beam interference technique. Information

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LANGUAGE: eng

NlmUniqueID: 247660

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Grant and Affiliation Information for Fabrication of highly rotational symmetric quasi-periodic structures by multiexposure of a three-beam interference technique.

AFFILIATION: Department of Physics, National Chung Cheng University, Ming Hsiung, Chiayi, Taiwan.

Country: United States

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MEDLINETA: Appl Opt

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