We report on the patterning of the free surface of azo-based polymer films by means of mass migration driven by one- or two-photon absorption. A symmetric donor-acceptor-donor structured Y-shaped azochromophore is specifically synthesized to enhance two-photon absorption in the polymer. The exposure of the polymer film to a focused laser beam results in light-driven mass migration for both one- and two-photon absorptions. Features with subdiffraction resolution (250 nm) are realized and the patterning dynamics is investigated as a function of the light dose. Furthermore, functional photonic structures, such as diffraction gratings with periods ranging between 0.5 and , have been realized.
REFERENCES
1.
2.
S.
Kawata
, H. -B.
Sun
, T.
Tanaka
, and K.
Takada
, Nature (London)
412
, 697
(2001
).3.
D.
Tan
, Y.
Li
, F.
Qi
, H.
Yang
, Q.
Gong
, X.
Dong
, and X.
Duan
, Appl. Phys. Lett.
90
, 071106
(2007
).4.
G. S.
Kumar
and D. C.
Neckers
, Chem. Rev. (Washington, D.C.)
89
, 1915
(1989
).5.
X.
Xingsheng
, M.
Hai
, W.
Pei
, L.
Zhongcheng
, and Z.
Qijin
, J. Opt. A, Pure Appl. Opt.
4
, L5
(2002
).6.
S. W.
Magennis
, F. S.
Mackay
, A. C.
Jones
, K. M.
Tait
, and P. J.
Sadler
, Chem. Mater.
17
, 2059
(2005
).7.
D.
Gindre
, A.
Boeglin
, A.
Fort
, L.
Mager
, and K. D.
Dorkenoo
, Opt. Express
14
, 9896
(2006
).8.
H.
Ishitobi
, Z.
Sekkat
, and S.
Kawata
, J. Chem. Phys.
125
, 164718
(2006
).9.
S.
Bian
, J. M.
Williams
, D. Y.
Kim
, L.
Li
, S.
Balasubramanian
, J.
Kumar
, and S.
Triphathy
, J. Appl. Phys.
86
, 4498
(1999
).10.
P.
Rochon
, E.
Batalla
, and A.
Natansohn
, Appl. Phys. Lett.
66
, 136
(1995
).11.
H.
Ishitobi
, S.
Shoji
, T.
Hiramatsu
, H. -B.
Sun
, Z.
Sekkart
, and S.
Kawata
, Opt. Express
16
, 14106
(2008
).12.
M.
Albota
, D.
Beljonne
, J. -L.
Brédas
, J. E.
Ehrlich
, J. -Y.
Fu
, A. A.
Heikal
, S. E.
Hess
, T.
Kogej
, M. D.
Levin
, S. R.
Marder
, D.
McCord-Maughon
, J. W.
Perry
, H.
Röckel
, M.
Rumi
, G.
Subramaniam
, W. W.
Webb
, X. -L.
Wu
, and C.
Xu
, Science
281
, 1653
(1998
).13.
A.
Carella
, F.
Borbone
, U.
Caruso
, R.
Centore
, A.
Roviello
, A.
Barsella
, and A.
Quatela
, Macromol. Chem. Phys.
208
, 1900
(2007
).14.
I.
Horcas
, R.
Fernández
, J. M.
Gómez-Rodríguez
, J.
Colchero
, J.
Gómez-Herrero
, and A. M.
Baro
, Rev. Sci. Instrum.
78
, 013705
(2007
).15.
S.
Bian
, L.
Li
, J.
Kumar
, D. Y.
Kim
, J.
Williams
, and S. K.
Tripathy
, Appl. Phys. Lett.
73
, 1817
(1998
).16.
K.
Sumaru
, T.
Fukuda
, T.
Kimura
, H.
Matsuda
, and T.
Yamanaka
, J. Appl. Phys.
91
, 3421
(2002
).17.
H.
Ishitobi
, Z.
Sekkat
, and S.
Kawata
, J. Opt. Soc. Am. B
23
, 868
(2006
).18.
R.
Stabile
, A.
Camposeo
, L.
Persano
, S.
Tavazzi
, R.
Cingolani
, and D.
Pisignano
, Appl. Phys. Lett.
91
, 101110
(2007
).19.
X. L.
Jiang
, L.
Li
, J.
Kumar
, D. Y.
Kim
, V.
Shivshankar
, and S. K.
Tripathy
, Appl. Phys. Lett.
68
, 2618
(1996
).20.
A.
Ambrosio
, A.
Camposeo
, P.
Maddalena
, S.
Patanè
, and M.
Allegrini
, J. Microsc.
229
, 307
(2008
).© 2009 American Institute of Physics.
2009
American Institute of Physics
You do not currently have access to this content.
