Measurement and analysis of the angular guided-wave depolarized light scattering patterns from block copolymer thin films

Zhuangxi Fang; Maurice C. Newstein; Bruce A. Garetz; Nitash P. Balsara

doi:10.1021/ma101791m

Measurement and analysis of the angular guided-wave depolarized light scattering patterns from block copolymer thin films

Zhuangxi Fang, Maurice C. Newstein, Bruce A. Garetz, Nitash P. Balsara

Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

We have measured and analyzed the angular scattering patterns in guided-wave depolarized light scattering (GWDLS) from 500 nm thick diblock copolymer thin films of poly(styrene-block-isoprene) using diffraction grating couplers. The measured pattern is decomposed into the sum of contributions from ordered grains and grating birefringence. Measured patterns are well fitted using a grain model consisting of disks lying in the film plane with elliptical cross sections, randomly oriented optic axes, and variable-length major axes.

Original language	English (US)
Pages (from-to)	10071-10077
Number of pages	7
Journal	Macromolecules
Volume	43
Issue number	23
DOIs	https://doi.org/10.1021/ma101791m
State	Published - Dec 14 2010

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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10.1021/ma101791m

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abstract = "We have measured and analyzed the angular scattering patterns in guided-wave depolarized light scattering (GWDLS) from 500 nm thick diblock copolymer thin films of poly(styrene-block-isoprene) using diffraction grating couplers. The measured pattern is decomposed into the sum of contributions from ordered grains and grating birefringence. Measured patterns are well fitted using a grain model consisting of disks lying in the film plane with elliptical cross sections, randomly oriented optic axes, and variable-length major axes.",

author = "Zhuangxi Fang and Newstein, {Maurice C.} and Garetz, {Bruce A.} and Balsara, {Nitash P.}",

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T1 - Measurement and analysis of the angular guided-wave depolarized light scattering patterns from block copolymer thin films

AU - Fang, Zhuangxi

AU - Newstein, Maurice C.

AU - Garetz, Bruce A.

AU - Balsara, Nitash P.

PY - 2010/12/14

Y1 - 2010/12/14

N2 - We have measured and analyzed the angular scattering patterns in guided-wave depolarized light scattering (GWDLS) from 500 nm thick diblock copolymer thin films of poly(styrene-block-isoprene) using diffraction grating couplers. The measured pattern is decomposed into the sum of contributions from ordered grains and grating birefringence. Measured patterns are well fitted using a grain model consisting of disks lying in the film plane with elliptical cross sections, randomly oriented optic axes, and variable-length major axes.

AB - We have measured and analyzed the angular scattering patterns in guided-wave depolarized light scattering (GWDLS) from 500 nm thick diblock copolymer thin films of poly(styrene-block-isoprene) using diffraction grating couplers. The measured pattern is decomposed into the sum of contributions from ordered grains and grating birefringence. Measured patterns are well fitted using a grain model consisting of disks lying in the film plane with elliptical cross sections, randomly oriented optic axes, and variable-length major axes.

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JO - Macromolecules

JF - Macromolecules

IS - 23

ER -

Measurement and analysis of the angular guided-wave depolarized light scattering patterns from block copolymer thin films

Abstract

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