Sum-frequency vibrational spectroscopy was used to study how linearly polarized UV irradiation could cause bond breaking and alter the surface structure of a polyimide. The spectroscopic results allowed the determination of an approximate orientational distribution of the polymer backbones at a rubbed surface. They also permitted deduction of rates of bond breaking of the backbones at the surface by UV dosage. The surface anisotropy resulting from bond breaking by linearly polarized UV irradiation was found to be relatively small, suggesting a weak azimuthal anchoring energy for liquid crystal films deposited on such a surface.
REFERENCES
1.
2.
3.
J. M.
Geary
, J. W.
Goodby
, A. R.
Kmetz
, and J. S.
Patel
, J. Appl. Phys.
62
, 4100
(1987
).4.
N. A. J. M.
van Aerle
, M.
Barmentlo
, and R. W. J.
Hollering
, J. Appl. Phys.
74
, 3111
(1993
).5.
X.
Zhuang
, L.
Marrucci
, and Y. R.
Shen
, Phys. Rev. Lett.
73
, 1513
(1994
).6.
K.
Sawa
, K.
Sumiyoshi
, Y.
Hirai
, K.
Tateishi
, and T.
Kamejima
, Jpn. J. Appl. Phys., Part 1
33
, 6273
(1994
).7.
Y.
Ouchi
, I.
Mori
, M.
Sei
, E.
Ito
, T.
Araki
, H.
Ishii
, K.
Seki
, and K.
Kondo
, Physica B
208/209
, 407
(1995
).8.
M. F.
Toney
, T. P.
Russell
, J. A.
Logan
, H.
Kikuchi
, J. M.
Sands
, and S. K.
Kumar
, Nature (London)
374
, 709
(1995
).9.
10.
K.
Ichimura
, Y.
Suzuki
, T.
Seki
, A.
Hosoki
, and K.
Aoki
, Langmuir
4
, 1214
(1988
).11.
G. W.
Gibbons
, P.
Shannon
, S.
Sun
, and B.
Swetlin
, Nature (London)
351
, 49
(1991
).12.
M.
Schadt
, K.
Schmitt
, V.
Hozinkov
, and V.
Chifrinnov
, Jpn. J. Appl. Phys., Part 1
31
, 2155
(1992
).13.
Y.
Iimura
, T.
Saitoh
, S.
Kobayashi
, and T.
Hashimoto
, J. Photopolym. Sci. Technol.
8
, 257
(1995
).14.
M.
Schadt
, H.
Seiberle
, and A.
Schuster
, Nature (London)
381
, 212
(1996
).15.
M.
Hasegawa
and Y.
Taira
, J. Photopolym. Sci. Technol.
8
, 241
(1995
).16.
D. C.
Rich
, E.
Sichel
, and P.
Cebe
, J. Appl. Polym. Sci.
65
, 1151
(1997
).17.
Y.
Wang
, A.
Kanazawa
, T.
Shiono
, T.
Ikeda
, Y.
Matsuki
, and Y.
Takeuchi
, Appl. Phys. Lett.
72
, 545
(1998
).18.
19.
K.
Sakamoto
, K.
Usami
, M.
Watanabe
, R.
Arafune
, and S.
Ushioda
, Appl. Phys. Lett.
72
, 1832
(1998
).20.
Y.
Wang
, C.
Xu
, A.
Kanazawa
, T.
Shiono
, T.
Ikeda
, Y.
Matuski
, and Y.
Takeuchi
, J. Appl. Phys.
84
, 4573
(1998
).21.
Y. R. Shen, in Proceedings of the International School of Physics “Enrico Fermi,” Course CXX, Frontier in Laser Spectroscopy, edited by T. W. Hansch and M. Inguscio (North-Holland, Amsterdam, 1994), p. 139.
22.
23.
Y. R. Shen, The Principle of Nonlinear Optics (Wiley, New York, 1984).
24.
25.
Y. R. Shen, in Nonlinear Spectroscopy for Molecular Structure Determination, edited by R. W. Field, E. Hirota, J. P. Maier, and S. Tsuchiya, IUPAC Chemical Data Series (Blackwell Science, Oxford, UK, 1998), Ch. 10.
26.
H.
Ishida
, S. T.
Wellinghoff
, E.
Baer
, and J. L.
Koenig
, Macromolecules
13
, 826
(1980
).27.
S.
Gong
, J.
Kanicki
, L.
Ma
, and J. Z. Z.
Zhong
, Jpn. J. Appl. Phys., Part 1
38
, 5996
(1999
).28.
K.
Kumagai
, K.
Sakamoto
, K.
Usami
, R.
Arafune
, Y.
Nakabayashi
, and S.
Ushioda
, Jpn. J. Appl. Phys., Part 1
38
, 3615
(1999
).29.
M.
Oh-e
, S.-C.
Hong
, and Y. R.
Shen
, J. Phys. Chem. B
104
, 7455
(2000
).30.
J.
Chen
, D. L.
Johnson
, P. J.
Bos
, X.
Wang
, and J. L.
West
, Phys. Rev. E
54
, 1599
(1996
).31.
A. Th.
Ionescu
, R.
Barberi
, M.
Giocondo
, M.
Iovane
, and A. L.
Alexe-Ionescu
, Phys. Rev. E
58
, 1967
(1998
).32.
X.
Wei
, S.-C.
Hong
, X.
Zhuang
, T.
Goto
, and Y. R.
Shen
, Phys. Rev. E
62
, 5160
(2000
).33.
G. Varsányi, Assignments for Vibrational Spectra of Seven Hundred Benzene Derivatives (Wiley, New York, 1974), Vol. 1.
34.
S. Singh, in Handbook of Lasers, edited by R. J. Pressley (RC, Cleveland, OH, 1971), p. 489 and p. 497.
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