Brillouin light scattering is employed to record the phonon dispersion relation of two-dimensional (2D) hypersonic phononic crystals with square lattice plane group symmetry. The samples are single crystalline arrays of cylindrical holes with a lattice constant of and 35% porosity patterned in epoxy using interference lithography. The dispersion relation reveals the presence of a phononic band gap between 1.21 and at the edge of the first Brillouin zone for elastic waves propagating along the [10] direction and conclusively demonstrates a band gap in a single crystalline 2D polymer based phononic structure at hypersonic frequencies.
REFERENCES
1.
T.
Gorishnyy
, M.
Maldovan
, C. K.
Ullal
, and E. L.
Thomas
, Phys. World
18
, 24
(2005
).2.
G.
Chen
, A.
Narayanaswamy
, and C.
Dames
, Superlattices Microstruct.
35
, 161
(2004
).3.
M.
Trigo
, A.
Bruchhausen
, A.
Fainstein
, B.
Jusserand
, and V.
Thierry-Mieg
, Phys. Rev. Lett.
89
, 227402
(2002
).4.
R.
Venkatasubramanian
, E.
Siivola
, T.
Colpitts
, and B.
O'Quinn
, Nature (London)
413
, 597
(2001
).5.
L.
Dhar
and J. A.
Rogers
, Appl. Phys. Lett.
77
, 1402
(2000
).6.
T.
Gorishnyy
, C. K.
Ullal
, M.
Maldovan
, G.
Fytas
, and E. L.
Thomas
, Phys. Rev. Lett.
94
, 115501
(2005
).7.
J. H.
Jang
, C. K.
Ullal
, T.
Gorishnyy
, V. V.
sukruk
, and E. L.
Thomas
, Nano Lett.
6
, 740
(2006
).8.
W.
Cheng
, J. J.
Wang
, U.
Jonas
, G.
Fytas
, and N.
Stefanov
, Nat. Mater.
5
, 830
(2006
).9.
M.
Maldovan
and E. L.
Thomas
, Appl. Phys. Lett.
88
, 251907
(2006
).10.
M.
Maldovan
and E. L.
Thomas
, Appl. Phys. B: Lasers Opt.
83
, 595
(2006
).11.
P.
Dainese
, P. S. J.
Russell
, N.
Joly
, J. C.
Knight
, G. S.
Wiederhecker
, H. L.
Fragnito
, V.
Laude
, and A.
Khelif
, Nat. Phys.
2
, 388
(2006
).12.
A. J.
Kent
, R. N.
Kini
, N. M.
Stanton
, M.
Henini
, B. A.
Glavin
, V. A.
Kochelap
, and T. L.
Linnik
, Phys. Rev. Lett.
96
, 215504
(2006
).13.
S. G.
Cloutier
, C. H.
Hsu
, P. A.
Kossyrev
, and J.
Xu
, Adv. Mater. (Weinheim, Ger.)
18
, 841
(2006
).14.
W.
Cheng
, T.
Gorishnyy
, V.
Krikorian
, G.
Fytas
, and E. L.
Thomas
, Macromolecules
39
, 9614
(2006
).15.
A. M.
Urbas
, E. L.
Thomas
, H.
Kriegs
, G.
Fytas
, R. S.
Penciu
, and L. N.
Economou
, Phys. Rev. Lett.
90
, 108302
(2003
).16.
G.
Tommaseo
, R. S.
Penciu
, G.
Fytas
, E. N.
Economou
, T.
Hashimoto
, and N.
Hadjichristidis
, Macromolecules
37
, 5006
(2004
).17.
A.
Bartels
, T.
Dekorsy
, H.
Kurz
, and K.
Kohler
, Appl. Phys. Lett.
72
, 2844
(1998
).© 2007 American Institute of Physics.
2007
American Institute of Physics
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