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Title: Hybrid photonic-plasmonic near-field probe for efficient light conversion into the nanoscale hot spot

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Publication Date:
Sponsoring Org.:
OSTI Identifier:
Grant/Contract Number:
SC0017147; AC02-05CH11231
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Optics Letters
Additional Journal Information:
Journal Volume: 42; Journal Issue: 21; Related Information: CHORUS Timestamp: 2017-10-17 10:31:43; Journal ID: ISSN 0146-9592
Optical Society of America
Country of Publication:
United States

Citation Formats

Koshelev, Alexander, Munechika, Keiko, and Cabrini, Stefano. Hybrid photonic-plasmonic near-field probe for efficient light conversion into the nanoscale hot spot. United States: N. p., 2017. Web. doi:10.1364/OL.42.004339.
Koshelev, Alexander, Munechika, Keiko, & Cabrini, Stefano. Hybrid photonic-plasmonic near-field probe for efficient light conversion into the nanoscale hot spot. United States. doi:10.1364/OL.42.004339.
Koshelev, Alexander, Munechika, Keiko, and Cabrini, Stefano. 2017. "Hybrid photonic-plasmonic near-field probe for efficient light conversion into the nanoscale hot spot". United States. doi:10.1364/OL.42.004339.
title = {Hybrid photonic-plasmonic near-field probe for efficient light conversion into the nanoscale hot spot},
author = {Koshelev, Alexander and Munechika, Keiko and Cabrini, Stefano},
abstractNote = {},
doi = {10.1364/OL.42.004339},
journal = {Optics Letters},
number = 21,
volume = 42,
place = {United States},
year = 2017,
month =

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on October 19, 2018
Publisher's Accepted Manuscript

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  • We report on a nonlinear way to control and tune the dielectric environment of photonic crystal microcavities exploiting the local heating induced by near-field laser excitation at different excitation powers. The temperature gradient due to the optical absorption results in an index of refraction gradient which modifies the dielectric surroundings of the cavity and shifts the optical modes. Reversible tuning can be obtained either by changing the excitation power density or by exciting in different points of the photonic crystal microcavity.
  • A 2D polystyrene colloidal crystal self-assembled on a flat gold surface supports multiple photonic and plasmonic propagating resonance modes. For both classes of modes, the quality factors can exceed 100, higher than the quality factor of surface plasmons (SP) at a polymer–gold interface. The spatial energy distribution of those resonance modes are carefully studied by measuring the optical response of the hybrid plasmonic–photonic crystal after coating with dielectric materials under different coating profiles. Computer simulations with results closely matching those of experiments provide a clear picture of the field distribution of each resonance mode. For the SP modes, there ismore » strong confinement of electromagnetic energy near the metal surface, while for optical modes, the field is confined inside the spherical particles, far away from the metal. Coating of dielectric material on the crystal results in a large shift in optical features. A surface sensor based on the hybrid plasmonic–photonic crystal is proposed, and it is shown to have atomic layer sensitivity. An example of ethanol vapor sensing based on physisorption of ethanol onto the sensor surface is demonstrated.« less
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  • Optical Tamm states (OTSs) in analogy with its electronic counterpart confined at the surface of crystals are optical surface modes at the interfaces between uniform metallic films and distributed Bragg reflectors. In this paper, OTSs are numerically investigated in two-dimensional hybrid plasmonic-photonic crystal nanobeams (HPPCN), which are constructed by inserting a metallic nanoparticle into a photonic crystal nanobeam formed by periodically etching square air holes into dielectric waveguides. The evidences of OTSs can be verified by transmission spectra and the field distribution at resonant frequency. Similar to OTSs in one-dimensional multilayer structures OTSs in HPPCN can be excited by bothmore » TE and TM polarization. The physical origin of OTSs in HPPCN is due to the combined contribution of strong reflection imposed by the photonic band gap (PBG) of the photonic crystal (PC) nanobeam and strong backward scattering exerted by the nanoparticle. For TE, incidence OTSs can be obtained at the frequency near the center of the photonic band gap. The transmissivity and the resonant frequency can be finely tuned by the dimension of nanoparticles. While for TM incidence OTSs are observed for relatively larger metallic nanoparticles compared with TE polarization. The differences between TE and TM polarization can be explained by two reasons. For one reason stronger backward scattering of nanoparticles for TE polarization can be achieved by the excitation of localized surface plasmon polariton of nanoparticles. This assumption has been proved by examining the scattering, absorption, and extinction cross section of the metallic nanoparticle. The other can be attributed to the deep and wide PBG available for TE polarization with less number of air holes compared with TM polarization. Our results show great promise in extending the application scope of OTSs from one-dimensional structures to practical integrated photonic devices and circuits.« less