This paper presents an experimental study of the effect of magnetic media on the resonant behavior of nano-apertures which are used as near-field transducers in near-field applications. Transmission spectra through C-shaped nano-apertures with and without a magnetic medium in the near-field were measured. A significant shift in the resonant wavelength of the C-apertures was predicted by simulations and subsequently observed experimentally. The resonant wavelength shift depends on the thickness of the magnetic medium and starts to saturate as the magnetic medium becomes thicker. Near-field intensity simulations illustrate dimensional parameter requirements for C-aperture design when a magnetic storage medium is placed within the near field.
REFERENCES
1.
B.
Yorke
, Int. J. Microgr. Opt. Technol.
19
, 2
–4
(2001
).2.
R. E.
Rottmayer
, S.
Batra
, D.
Buechel
, W. A.
Challener
, J.
Hohlfeld
, Y.
Kubota
, L.
Li
, B.
Lu
, C.
Mihalcea
, K.
Mountfield
, K.
Pelhos
, C.
Peng
, T.
Rausch
, M. A.
Seigler
, D.
Weller
, and X.
Yang
et al, IEEE Trans. Magn.
42
, 2417
–2421
(2006
).3.
Y.
Shiroishi
, K.
Fukuda
, I.
Tagawa
, H.
Iwasaki
, S.
Takenoiri
, H.
Tanaka
, H.
Mutoh
, and N.
Yoshikawa
, IEEE Trans. Magn.
45
, 3816
–3822
(2009
).4.
5.
M.
Ohtsu
and H.
Hori
, Near-Field Nano-Optics
(Kluwer
, New York
, 1999
).6.
E.
Betzig
, J. K.
Trautman
, T. D.
Harris
, J. S.
Weiner
, and R. L.
Kostelak
, Science
251
, 1468
–470
(1991
).7.
E. X.
Jin
and X.
Xu
, Jpn. J. Appl. Phys., Part 1
43
, 407
–417
(2004
).8.
K.
Tanaka
and M.
Tanaka
, J. Microsc.
210
, 294
–300
(2003
).9.
L.
Wang
, S. M.
Uppuluri
, E. X.
Jin
, and X. F.
Xu
, Nano Lett.
6
, 361
–364
(2006
).10.
J.
Xu
, T.
Xu
, J.
Wang
, and Q.
Tian
, Opt. Eng.
44
, 018001
–1
018001
–9
(2005
).11.
Z.
Nan
, E. C.
Kinzel
, and X. F.
Xu
, Appl. Opt.
50
, G42
–G46
(2011
).12.
X.
Shi
, R. L.
Thornton
, and L.
Hesselink
, Proc. SPIE
4342
, 320
–327
(2002
).13.
K.
Nakagawa
, J. Appl. Phys.
109
, 07B735
–1
07B735
–3
(2011
).14.
S.
Omodani
, T.
Saiki
, and M.
Obara
, J. Appl. Phys.
105
, 013101
–1
013101
–5
(2009
).15.
T. E.
Schlesinger
, T.
Rausch
, A.
Itagi
, J.
Zhu
, J. A.
Bain
, and D. D.
Stancil
, Jpn. J. Appl. Phys., Part 1
41
, 1821
–1824
(2002
).16.
K.
Sendur
, C.
Peng
, and W.
Challener
, Phys. Rev. Lett.
94
, 043901
–1
043901
–4
(2005
).17.
A. V.
Itagi
, D. D.
Stancil
, J. A.
Bain
, and T. E.
Schlesinger
, Appl. Phys. Lett.
83
, 4474
–4476
(2003
).18.
19.
K.
Sato
, A.
Mizusawa
, K.
Ishida
, T.
Shima
, and K.
Takanashi
, Trans. Magn. Soc. Jpn.
4
, 297
(2004
)20.
P. B.
Johnson
and R. W.
Christy
, Phys. Rev.
6
, 4370
–4379
(1972
).21.
J.
Bass
, J. S.
Dugdale
, C. L.
Foiles
, and A.
Myers
, in Metals: Electronic Transport Phenomena: Electrical Resistivity, Thermoelectrical Power and Optical Properties
, edited by K.-H.
Hellwege
and J. L.
Olsen
(Springer
, 1985
).22.
K.
Sendur
and P.
Jones
, Appl. Phys. Lett.
88
, 091110
(2006
).23.
P.
Nordlander
and E.
Prodan
, Nano Lett.
4
, 2209
(2004
).24.
F.
Le
, N. Z.
Lwin
, J. M.
Steele
, M.
Kall
, N. J.
Halas
, and P.
Nordlander
, Nano Lett.
5
, 2009
(2005
).25.
L. Y.
Sun
, R. K.
Batra
, X. L.
Shi
, and L.
Hesselink
, IEEE Visualization
2004
, 337
.26.
S. P.
Powell
, E. J.
Black
, T. E.
Schlesinger
, and J. A.
Bain
, J. Appl. Phys.
109
, 07B775
(2011
).27.
K.
Sendur
and W.
Challener
, Appl. Phys. Lett.
94
, 032503
(2009
).28.
B. C.
Stipe
, T. C.
Strand
, C. C.
Poon
, H.
Balamane
, T. D.
Boone
, J. A.
Katine
, J. L.
Li
, V.
Rawat
, H.
Nemoto
, A.
Hirotsune
, O.
Hellwig
, R.
Ruiz
, E.
Dobisz
, D. S.
Kercher
, N.
Robertson
, T. R.
Albrecht
, and B. D.
Terris
, Nat. Photonics
4
, 484
(2010
).© 2014 AIP Publishing LLC.
2014
AIP Publishing LLC
You do not currently have access to this content.