Highly tunable infrared extinction properties of gold nanocrescents

被引：265

作者：

Bukasov, Rostislav ^{[1
]}

Shumaker-Parry, Jennifer S. ^{[1
]}

机构：

[1] Univ Utah, Dept Chem, Salt Lake City, UT 84112 USA

来源：

NANO LETTERS | 2007年 / 7卷 / 05期

关键词：

D O I：

10.1021/nl062317o

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The infrared extinction properties of gold nanocrescents fabricated using nanosphere template lithography were studied. The nanocrescents exhibit multiple, structurally tunable localized surface plasmon resonances (LSPRs) across a broad spectral range (560-3600 nm). Plasmon resonances in the infrared have large extinction efficiencies of similar to 20 and peaks as narrow as 0.07 eV. The nanocrescents also have high refractive index sensitivities (370-880 nm/RIU) that are proportional to the LSPR wavelengths. The sensing figure of merit measured for ensembles of nanocrescents is as high as 2.4 for near-infrared plasmon resonances.

引用

页码：1113 / 1118

页数：6

共 38 条

[1] AIZPURUA J, 2003, PHYS REV LETT, V90
[2] Surface-enhanced Raman scattering
Campion, A
Kambhampati, P
[J]. CHEMICAL SOCIETY REVIEWS, 1998, 27 (04) : 241 - 250
[3] Reduced symmetry metallodielectric nanoparticles: Chemical synthesis and plasmonic properties
Charnay, C
Lee, A
Man, SQ
Moran, CE
Radloff, C
Bradley, RK
Halas, NJ
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (30) : 7327 - 7333
[4] Selective colorimetric detection of polynucleotides based on the distance-dependent optical properties of gold nanoparticles
Elghanian, R
Storhoff, JJ
Mucic, RC
Letsinger, RL
Mirkin, CA
[J]. SCIENCE, 1997, 277 (5329) : 1078 - 1081
[5] SUB-MICROSCOPIC PATTERN REPLICATION WITH VISIBLE-LIGHT
FISCHER, UC
ZINGSHEIM, HP
[J]. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY, 1981, 19 (04): : 881 - 885
[6] Using solution-phase nanoparticles, surface-confined nanoparticle arrays and single nanoparticles as biological sensing platforms
Haes, AJ
Stuart, DA
Nie, SM
Van Duyne, RP
[J]. JOURNAL OF FLUORESCENCE, 2004, 14 (04) : 355 - 367
[7] A nanoscale optical blosensor: Sensitivity and selectivity of an approach based on the localized surface plasmon resonance spectroscopy of triangular silver nanoparticles
Haes, AJ
Van Duyne, RP
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (35) : 10596 - 10604
[8] Optical properties of short range ordered arrays of nanometer gold disks prepared by colloidal lithography
Hanarp, P
Käll, M
Sutherland, DS
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (24) : 5768 - 5772
[9] Nanoparticle optics: The importance of radiative dipole coupling in two-dimensional nanoparticle arrays
Haynes, CL
McFarland, AD
Zhao, LL
Van Duyne, RP
Schatz, GC
Gunnarsson, L
Prikulis, J
Kasemo, B
Kall, M
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (30) : 7337 - 7342
[10] NANOSPHERE LITHOGRAPHY - A MATERIALS GENERAL FABRICATION PROCESS FOR PERIODIC PARTICLE ARRAY SURFACES
HULTEEN, JC
VANDUYNE, RP
[J]. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1995, 13 (03): : 1553 - 1558

← 1 2 3 4 →