All-Semiconductor Plasmonic Nanoantennas for Infrared Sensing

被引:162
作者
Law, Stephanie [1 ]
Yu, Lan [1 ]
Rosenberg, Aaron [1 ]
Wasserman, Daniel [1 ]
机构
[1] Univ Illinois, Dept Elect & Comp Engn, Micro & Nanotechnol Lab, Urbana, IL 61801 USA
基金
美国国家科学基金会;
关键词
Midinfrared; plasmonics; antenna; sensing; RESONANCE SENSORS; SPECTROSCOPY; ARRAYS; METALS;
D O I
10.1021/nl402766t
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Infrared absorption spectroscopy of vibro-rotational molecular resonances provides a powerful method for investigation of a wide range of molecules and molecular compounds. However, the wavelength of light required to excite these resonances is often orders of magnitude larger than the absorption cross sections of the molecules under investigation. This mismatch makes infrared detection and identification of nanoscale volumes of material challenging. Here we demonstrate a new type of infrared plasmonic antenna for long-wavelength nanoscale enhanced sensing. The plasmonic materials utilized are epitaxially grown semiconductor engineered metals, which results in high-quality, low-loss infrared plasmonic metals with tunable optical properties. Nanoantennas are fabricated using nanosphere lithography, allowing for cost-effective and large-area fabrication of nanoscale structures. Antenna arrays are optically characterized as a function of both the antenna geometry and the optical properties of the plasmonic semiconductor metals. Thin, weakly absorbing polymer layers are deposited upon the antenna arrays, and we are able to observe very weak molecular absorption signatures when these signatures are in spectral proximity to the antenna resonance. Experimental results are supported with finite element modeling with strong agreement.
引用
收藏
页码:4569 / 4574
页数:6
相关论文
共 38 条
[1]   Ultra-sensitive vibrational spectroscopy of protein monolayers with plasmonic nanoantenna arrays [J].
Adato, Ronen ;
Yanik, Ahmet A. ;
Amsden, Jason J. ;
Kaplan, David L. ;
Omenetto, Fiorenzo G. ;
Hong, Mi K. ;
Erramilli, Shyamsunder ;
Altug, Hatice .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2009, 106 (46) :19227-19232
[2]   High-Throughput Nanofabrication of Infrared Plasmonic Nanoantenna Arrays for Vibrational Nanospectroscopy [J].
Aksu, Serap ;
Yanik, Ahmet A. ;
Adato, Ronen ;
Artar, Alp ;
Huang, Min ;
Altug, Hatice .
NANO LETTERS, 2010, 10 (07) :2511-2518
[3]   Biosensing with plasmonic nanosensors [J].
Anker, Jeffrey N. ;
Hall, W. Paige ;
Lyandres, Olga ;
Shah, Nilam C. ;
Zhao, Jing ;
Van Duyne, Richard P. .
NATURE MATERIALS, 2008, 7 (06) :442-453
[4]  
[Anonymous], 2010, PLASMONICS FUNDAMENT
[5]   Nanosphere-in-a-Nanoshell: A Simple Nanomatryushka [J].
Bardhan, Rizia ;
Mukherjee, Shaunak ;
Mirin, Nikolay A. ;
Levit, Stephen D. ;
Nordlander, Peter ;
Halas, Naomi J. .
JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (16) :7378-7383
[6]   Potentials and limits of mid-infrared laser spectroscopy for the detection of explosives [J].
Bauer, C. ;
Sharma, A. K. ;
Willer, U. ;
Burgmeier, J. ;
Braunschweig, B. ;
Schade, W. ;
Blaser, S. ;
Hvozdara, L. ;
Mueller, A. ;
Holl, G. .
APPLIED PHYSICS B-LASERS AND OPTICS, 2008, 92 (03) :327-333
[7]   Fourier transform infrared imaging for high-throughput analysis of pharmaceutical formulations [J].
Chan, KLA ;
Kazarian, SG .
JOURNAL OF COMBINATORIAL CHEMISTRY, 2005, 7 (02) :185-189
[8]   NATURAL LITHOGRAPHY [J].
DECKMAN, HW ;
DUNSMUIR, JH .
APPLIED PHYSICS LETTERS, 1982, 41 (04) :377-379
[9]   Formation of High Aspect Ratio GaAs Nanostructures with Metal-Assisted Chemical Etching [J].
DeJarld, Matt ;
Shin, Jae Cheol ;
Chern, Winston ;
Chanda, Debashis ;
Balasundaram, Karthik ;
Rogers, John A. ;
Li, Xiuling .
NANO LETTERS, 2011, 11 (12) :5259-5263
[10]   INFRARED-SPECTRA OF POLY(METHYL METHACRYLATE) LABELED WITH O-18 [J].
DIRLIKOV, S ;
KOENIG, JL .
APPLIED SPECTROSCOPY, 1979, 33 (06) :551-555