Bow-tie optical antenna probes for single-emitter scanning near-field optical microscopy

被引：99

作者：

Farahani, Javad N.

Eisler, Hans-Juergen

Pohl, Dieter W.

Pavius, Michael

Flueckiger, Philippe

Gasser, Philippe

Hecht, Bert

机构：

[1] Univ Basel, Inst Phys, Natl Ctr Competence Res Nanoscale Sci, Nanoopt Grp, CH-4056 Basel, Switzerland

[2] Ecole Polytech Fed Lausanne, Ctr MicroNano Technol, CH-1015 Lausanne, Switzerland

[3] Swiss Fed Labs Mat Testing & Res, EMPA, Elect Metrol Lab, CH-8600 Dubendorf, Switzerland

来源：

NANOTECHNOLOGY | 2007年 / 18卷 / 12期

关键词：

D O I：

10.1088/0957-4484/18/12/125506

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A method for the fabrication of bow-tie optical antennas at the apex of pyramidal Si3N4 atomic force microscopy tips is described. We demonstrate that these novel optical probes are capable of sub-wavelength imaging of single quantum dots at room temperature. The enhanced and confined optical near-field at the antenna feed gap leads to locally enhanced photoluminescence (PL) of single quantum dots. Photoluminescence quenching due to the proximity of metal is found to be insignificant. The method holds promise for single quantum emitter imaging and spectroscopy at spatial resolution limited by the engineered antenna gap width exclusively.

引用

页数：4

共 19 条

[1] Surface plasmon subwavelength optics [J].

Barnes, WL ;

Dereux, A ;

Ebbesen, TW .

NATURE, 2003, 424 (6950) :824-830

[2] Single quantum dot coupled to a scanning optical antenna: A tunable superemitter [J].

Farahani, JN ;

Pohl, DW ;

Eisler, HJ ;

Hecht, B .

PHYSICAL REVIEW LETTERS, 2005, 95 (01)

[3] Emission intensity dependence and single-exponential behavior in single colloidal quantum dot fluorescence lifetimes [J].

Fisher, BR ;

Eisler, HJ ;

Stott, NE ;

Bawendi, MG .

JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (01) :143-148

[4] Optical forces between metallic particles [J].

Hallock, AJ ;

Redmond, PL ;

Brus, LE .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2005, 102 (05) :1280-1284

[5] High-resolution near-field Raman microscopy of single-walled carbon nanotubes -: art. no. 095503 [J].

Hartschuh, A ;

Sánchez, EJ ;

Xie, XS ;

Novotny, L .

PHYSICAL REVIEW LETTERS, 2003, 90 (09) :4

[6]

HECHT B, 2006, ADV NANOOPTICS NANOP, V1

[7] Single molecule detection using surface-enhanced Raman scattering (SERS) [J].

Kneipp, K ;

Wang, Y ;

Kneipp, H ;

Perelman, LT ;

Itzkan, I ;

Dasari, R ;

Feld, MS .

PHYSICAL REVIEW LETTERS, 1997, 78 (09) :1667-1670

[8] Near-field probing of vibrational absorption for chemical microscopy [J].

Knoll, B ;

Keilmann, F .

NATURE, 1999, 399 (6732) :134-137

[9] Squeezing the optical near-field zone by plasmon coupling of metallic nanoparticles [J].

Krenn, JR ;

Dereux, A ;

Weeber, JC ;

Bourillot, E ;

Lacroute, Y ;

Goudonnet, JP ;

Schider, G ;

Gotschy, W ;

Leitner, A ;

Aussenegg, FR ;

Girard, C .

PHYSICAL REVIEW LETTERS, 1999, 82 (12) :2590-2593

[10] Local detection of electromagnetic energy transport below the diffraction limit in metal nanoparticle plasmon waveguides [J].

Maier, SA ;

Kik, PG ;

Atwater, HA ;

Meltzer, S ;

Harel, E ;

Koel, BE ;

Requicha, AAG .

NATURE MATERIALS, 2003, 2 (04) :229-232

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