Coupling of Epsilon-Near-Zero Mode to Gap Plasmon Mode for Flat-Top Wideband Perfect Light Absorption

被引：90

作者：

Hendrickson, Joshua R. ^{[1
]}

Vangala, Shivashankar ^{[1
,2
]}

Dass, Chandriker ^{[1
,3
]}

Gibson, Ricky ^{[1
,4
]}

Goldsmith, John ^{[1
,3
]}

Leedy, Kevin ^{[1
]}

Walker, Dennis E., Jr. ^{[1
]}

Cleary, Justin W. ^{[1
]}

Kim, Wonkyu ^{[5
]}

Guo, Junpeng ^{[5
]}

机构：

[1] US Air Force, Res Lab, Sensors Directorate, Dayton, OH 45433 USA

[2] Azimuth Corp, Dayton, OH 45431 USA

[3] KBRwyle Labs Inc, Dayton, OH 45431 USA

[4] Univ Dayton, Res Inst, Dayton, OH 45469 USA

[5] Univ Alabama, Dept Elect & Comp Engn, Huntsville, AL 35899 USA

来源：

ACS PHOTONICS | 2018年 / 5卷 / 03期

基金：

美国国家科学基金会;

关键词：

epsilon-near-zero; perfect light absorption; plasmonics; metasurface; light matter coupling; METAMATERIALS;

D O I：

10.1021/acsphotonics.7b01491

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Epsilon-near-zero (ENZ) materials, when probed at or near wavelengths corresponding to their zero permittivity crossing points, have unique and interesting properties that can be exploited for enhancing nanoscale light matter interactions. Here, we experimentally show that over an order of magnitude increase in the absorption band of a periodically patterned metal-dielectric-metal structure can be obtained by integrating an indium tin oxide (ITO) subwavelength nanolayer into the insulating dielectric gap region. Through incorporation of a 12 nm thick ITO layer between the patterned gold nanodisks and the SiO2 dielectric layer, a 240 rim wide, flat-top perfect (>98%) absorption centered at 1550 nm wavelength is enabled. The demonstrated wideband, perfect absorption resonance is shown to be due to coupling between the gap plasmon mode of the metasurface and the ENZ mode in the nanoscale ITO film.

引用

页码：776 / 781

页数：11

共 29 条

[1]

Aeschlimann M, 2015, NAT PHOTONICS, V9, P663, DOI [10.1038/NPHOTON.2015.159, 10.1038/nphoton.2015.159]

[2]

Aglo M., 2013, OPTICAL ANTENNAS

[3] Epsilon-near-zero metamaterials and electromagnetic sources:: Tailoring the radiation phase pattern [J].

Alu, Andrea ;

Silveirinha, Mario G. ;

Salandrino, Alessandro ;

Engheta, Nader .

PHYSICAL REVIEW B, 2007, 75 (15)

[4] Admittance matching analysis of perfect absorption in unpatterned thin films [J].

Badsha, Md. Alamgir ;

Jun, Young Chul ;

Hwangbo, Chang Kwon .

OPTICS COMMUNICATIONS, 2014, 332 :206-213

[5] Near-Infrared Strong Coupling between Metamaterials and Epsilon-near-Zero Modes in Degenerately Doped Semiconductor Nanolayers [J].

Campione, Salvatore ;

Wendt, Joel R. ;

Keeler, Gordon A. ;

Luk, Ting S. .

ACS PHOTONICS, 2016, 3 (02) :293-297

[6] Theory of epsilon-near-zero modes in ultrathin films [J].

Campione, Salvatore ;

Brener, Igal ;

Marquier, Francois .

PHYSICAL REVIEW B, 2015, 91 (12)

[7] Single-molecule strong coupling at room temperature in plasmonic nanocavities [J].

Chikkaraddy, Rohit ;

de Nijs, Bart ;

Benz, Felix ;

Barrow, Steven J. ;

Scherman, Oren A. ;

Rosta, Edina ;

Demetriadou, Angela ;

Fox, Peter ;

Hess, Ortwin ;

Baumberg, Jeremy J. .

NATURE, 2016, 535 (7610) :127-130

[8] Tunable short-to mid-infrared perfectly absorbing thin films utilizing conductive zinc oxide on metal [J].

Cleary, Justin W. ;

Nader, Nima ;

Leedy, Kevin D. ;

Soref, Richard .

OPTICAL MATERIALS EXPRESS, 2015, 5 (09) :1898-1909

[9] Coherent perfect absorption in epsilon-near-zero metamaterials [J].

Feng, Simin ;

Halterman, Klaus .

PHYSICAL REVIEW B, 2012, 86 (16)

[10] High performance optical absorber based on a plasmonic metamaterial [J].

Hao, Jiaming ;

Wang, Jing ;

Liu, Xianliang ;

Padilla, Willie J. ;

Zhou, Lei ;

Qiu, Min .

APPLIED PHYSICS LETTERS, 2010, 96 (25)

← 1 2 3 →