Superfocusing of electric or magnetic fields using conical metal tips: effect of mode symmetry on the plasmon excitation method

被引：27

作者：

Lee, Jae Sung ^{[1
]}

Han, Sanghoon ^{[1
]}

Shirdel, Javid ^{[2
]}

Koo, Sukmo ^{[1
]}

Sadiq, Diyar ^{[2
]}

Lienau, Christoph ^{[2
]}

Park, Namkyoo ^{[1
]}

机构：

[1] Seoul Natl Univ, Photon Syst Lab, EECS, Seoul 151742, South Korea

[2] Carl von Ossietzky Univ Oldenburg, Inst Phys, D-26111 Oldenburg, Germany

来源：

OPTICS EXPRESS | 2011年 / 19卷 / 13期

基金：

新加坡国家研究基金会;

关键词：

OPTICAL MICROSCOPY; PROBES; METAMATERIALS; POLARITONS;

D O I：

10.1364/OE.19.012342

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We compare single- and double-sided excitation methods of adiabatic surface plasmon polariton (SPP) wave superfocusing for scattering-type metallic near-field scanning optical microscopy (s-NSOM). Using the results of full 3D finite difference time domain analyses, the differences in field enhancement factors are explained and reveal the mode selectivity of a conical NSOM tip for adiabatic SPP superfocusing. Exploiting the mode-symmetric nature of the tip further, we also show that it is possible to selectively confine either the electric or magnetic field at the NSOM tip apex, by simply adjusting the relative phase between the SPP waves in the double-sided excitation approach. (C) 2011 Optical Society of America

引用

页码：12342 / 12347

页数：6

共 27 条

[1] Magnetic field concentrator for probing optical magnetic metamaterials
Antosiewicz, Tomasz J.
Wrobel, Piotr
Szoplik, Tomasz
[J]. OPTICS EXPRESS, 2010, 18 (25): : 25906 - 25911
[2] Fabrication and evaluation of a localized plasmon resonance probe for near-field optical microscopy/spectroscopy
Ashino, M
Ohtsu, M
[J]. APPLIED PHYSICS LETTERS, 1998, 72 (11) : 1299 - 1301
[3] Superfocusing of surface polaritons in the conical structure
Babadjanyan, AJ
Margaryan, NL
Nerkararyan, KV
[J]. JOURNAL OF APPLIED PHYSICS, 2000, 87 (08) : 3785 - 3788
[4] Superfocusing and Light Confinement by Surface Plasmon Excitation Through Radially Polarized Beam
Baida, F. I.
Belkhir, A.
[J]. PLASMONICS, 2009, 4 (01) : 51 - 59
[5] Numerical study of an apertureless near field scanning optical microscope probe under radial polarization illumination
Chen, Weibin
Zhan, Qiwen
[J]. OPTICS EXPRESS, 2007, 15 (07): : 4106 - 4111
[6] Plasmon resonances on metal tips: Understanding tip-enhanced Raman scattering
Demming, AL
Festy, F
Richards, D
[J]. JOURNAL OF CHEMICAL PHYSICS, 2005, 122 (18)
[7] Internal excitation and superfocusing of surface plasmon polaritons on a silver-coated optical fiber tip
Ding, W.
Andrews, S. R.
Maier, S. A.
[J]. PHYSICAL REVIEW A, 2007, 75 (06)
[8] Fillard J. P., 1996, NEAR FIELD OPTICS NA
[9] Optimized nonadiabatic nanofocusing of plasmons by tapered metal rods
Gramotnev, Dmitri K.
Vogel, Michael W.
Stockman, Mark I.
[J]. JOURNAL OF APPLIED PHYSICS, 2008, 104 (03)
[10] Scanning near-field optical microscopy with aperture probes: Fundamentals and applications
Hecht, B
Sick, B
Wild, UP
Deckert, V
Zenobi, R
Martin, OJF
Pohl, DW
[J]. JOURNAL OF CHEMICAL PHYSICS, 2000, 112 (18) : 7761 - 7774

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