Electrically Tunable Epsilon-Near-Zero (ENZ) Metafilm Absorbers

被引:212
|
作者
Park, Junghyun [1 ]
Kang, Ju-Hyung [1 ]
Liu, Xiaoge [1 ]
Brongersma, Mark L. [1 ]
机构
[1] Stanford Univ, Geballe Lab Adv Mat, Stanford, CA 94305 USA
来源
SCIENTIFIC REPORTS | 2015年 / 5卷
基金
新加坡国家研究基金会;
关键词
LIGHT-ABSORPTION; WAVE-GUIDE; METAMATERIAL;
D O I
10.1038/srep15754
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Enhancing and spectrally controlling light absorption is of great practical and fundamental importance. In optoelectronic devices consisting of layered semiconductors and metals, absorption has traditionally been manipulated with the help of Fabry-Perot resonances. Even further control over the spectral light absorption properties of thin films has been achieved by patterning them into dense arrays of subwavelength resonant structures to form metafilms. As the next logical step, we demonstrate electrical control over light absorption in metafilms constructed from dense arrays of actively tunable plasmonic cavities. This control is achieved by embedding indium tin oxide (ITO) into these cavities. ITO affords significant tuning of its optical properties by means of electrically-induced carrier depletion and accumulation. We demonstrate that particularly large changes in the reflectance from such metafilms (up to 15% P) can be achieved by operating the ITO in the epsilon-near-zero (ENZ) frequency regime where its electrical permittivity changes sign from negative to positive values.
引用
收藏
页数:9
相关论文
共 50 条
  • [1] Electrically Tunable Epsilon-Near-Zero (ENZ) Metafilm Absorbers
    Junghyun Park
    Ju-Hyung Kang
    Xiaoge Liu
    Mark L. Brongersma
    [J]. Scientific Reports, 5
  • [2] Epsilon-Near-Zero Subwavelength Optoelectronics: Electrically Tunable ENZ Strong Coupling
    Jun, Young Chul
    Reno, John L.
    Sinclair, Mike
    Brener, Igal
    [J]. 2013 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO), 2013,
  • [3] Epsilon-Near-Zero (ENZ) Antennas
    Wang, Shuyu
    Li, Yue
    [J]. 2024 IEEE INTERNATIONAL WORKSHOP ON ANTENNA TECHNOLOGY, IWAT, 2024, : 5 - 7
  • [4] Electrically tunable Goos–Hänchen shift from epsilon-near-zero (ENZ) structure with graphene
    Khawer Javaid Manzoor
    Qaisar Abbas Naqvi
    Muhammad Junaid Mughal
    [J]. The European Physical Journal D, 2022, 76
  • [5] Electrically tunable Goos-Hanchen shift from epsilon-near-zero (ENZ) structure with graphene
    Manzoor, Khawer Javaid
    Naqvi, Qaisar Abbas
    Mughal, Muhammad Junaid
    [J]. EUROPEAN PHYSICAL JOURNAL D, 2022, 76 (12):
  • [6] Epsilon-near-zero (ENZ)-based optomechanics
    Kiasat Y.
    Donato M.G.
    Hinczewski M.
    ElKabbash M.
    Letsou T.
    Saija R.
    Maragò O.M.
    Strangi G.
    Engheta N.
    [J]. Communications Physics, 2023, 6 (01)
  • [7] Field-Effect Tunable Epsilon-Near-Zero Perfect Absorbers
    Anopchenko, Aleksei
    Tao, Long
    Lee, Ho Wai Howard
    [J]. 2017 CONFERENCE ON LASERS AND ELECTRO-OPTICS PACIFIC RIM (CLEO-PR), 2017,
  • [8] Engineering electrically tunable TiN/SiO 2 epsilon-near-zero metamaterials
    Garbarino, Joseph
    Jones, John g.
    Stevenson, Peter r.
    Bowers, Cynthia T.
    Mahalingam, Krishnamurthy
    Kuznetsova, Lyuba
    [J]. OPTICAL MATERIALS EXPRESS, 2024, 14 (05): : 1186 - 1200
  • [9] Tunable radiation enhancement and suppression using a pair of photonically doped epsilon-near-zero (ENZ) slabs
    Nahvi, Ehsan
    Mencagli, Mario J.
    Engheta, Nader
    [J]. OPTICS LETTERS, 2022, 47 (06) : 1319 - 1322
  • [10] Salisbury screen absorbers using epsilon-near-zero substrate
    Wulan, Qiqige
    He, De
    Zhang, Tieyan
    Peng, Hao
    Liu, Lu
    Medvedev, Viacheslav V.
    Liu, Zhijun
    [J]. MATERIALS RESEARCH EXPRESS, 2021, 8 (01)