Preferential emission into epsilon-near-zero metamaterial [Invited]

Galfsky, Tal; Sun, Zheng; Jacob, Zubin; Menon, Vinod M.

doi:10.1364/OME.5.002878

Preferential emission into epsilon-near-zero metamaterial [Invited]

Journal Article · Mon Nov 23 00:00:00 EST 2015 · Optical Materials Express

DOI:https://doi.org/10.1364/OME.5.002878· OSTI ID:1240644

Galfsky, Tal ^[1]; Sun, Zheng ^[2]; Jacob, Zubin ^[3]; Menon, Vinod M. ^[2]

City College of New York, NY (United States); City Univ. (CUNY), NY (United States); Brookhaven Science Associates, LLC
City College of New York, NY (United States); City Univ. (CUNY), NY (United States)
Univ. of Alberta, Edmonton, AB (Canada)

We report the use of epsilon near zero (ENZ) metamaterial to control spontaneous emission from Zinc-Oxide (ZnO) excitons. The ENZ material consists of alternating layers of silver and alumina with subwavelength thicknesses, resulting in an effective medium where one of the components of the dielectric constant approach zero between 370nm-440nm wavelength range. Bulk ZnO with photoluminescence maximum in the ENZ regime was deposited via atomic layer deposition to obtain a smooth film with near field coupling to the ENZ metamaterial. Preferential emission from the ZnO layer into the metamaterial with suppression of forward emission by 90% in comparison to ZnO on silicon is observed. We attribute this observation to the presence of dispersionless plasmonic modes in the ENZ regime as shown by the results of theoretical modeling presented here. Integration of ENZ metamaterials with light emitters is an attractive platform for realizing a low threshold subwavelength laser.

View Accepted Manuscript (DOE)

Research Organization:: Brookhaven National Lab. (BNL), Upton, NY (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)

Grant/Contract Number:: AC02-98CH10886

OSTI ID:: 1240644

Journal Information:: Optical Materials Express, Journal Name: Optical Materials Express Journal Issue: 12 Vol. 5; ISSN 2159-3930

Publisher:: Optical Society of America (OSA)Copyright Statement

Country of Publication:: United States

Language:: English

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Strong Nonlinear Optical Response in the Visible Spectral Range with Epsilon‐Near‐Zero Organic Thin Films Lee, Yeon Ui; Garoni, Eleonora; Kita, Hanayo Advanced Optical Materials, Vol. 6, Issue 14 https://doi.org/10.1002/adom.201701400	journal	May 2018
Optical response of dipole antennas on an epsilon-near-zero substrate Schulz, Sebastian A.; Tahir, Asad A.; Alam, M. Zahirul Physical Review A, Vol. 93, Issue 6 https://doi.org/10.1103/physreva.93.063846	journal	June 2016

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Preferential emission into epsilon-near-zero metamaterial [Invited] Galfsky, Tal; Sun, Zheng; Jacob, Zubin https://doi.org/10.6084/m9.figshare.c.3755573 The current record is supplemented by this dataset	dataset	November 2015
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Preferential emission into epsilon-near-zero metamaterial [Invited]

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