Optically-Triggered Nanoscale Memory Effect in a Hybrid Plasmonic-Phase Changing Nanostructure

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F15%3APU115517" target="_blank" >RIV/00216305:26620/15:PU115517 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1021/acsphotonics.5b00249" target="_blank" >http://dx.doi.org/10.1021/acsphotonics.5b00249</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acsphotonics.5b00249" target="_blank" >10.1021/acsphotonics.5b00249</a>

Result language

angličtina

Original language name

Optically-Triggered Nanoscale Memory Effect in a Hybrid Plasmonic-Phase Changing Nanostructure

Original language description

Nanoscale devices, such as all-optical modulators and electro-optical transducers, can be implemented in heterostructures that integrate plasmonic nanostructures with functional active materials. Here we demonstrate all-optical control of a nanoscale memory effect in such a heterostructure by coupling the localized surface plasmon resonance (LSPR) of gold nanodisk arrays to a phase-changing material (PCM), vanadium dioxide (VO2). By latching the VO2 in a distinct correlated metallic state during the insulator-to-metal transition (IMT), while concurrently exciting the hybrid nanostructure with one or more ultraviolet optical pulses, the entire phase space of this correlated state can be accessed optically to modulate the plasmon response. We find that the LSPR modulation depends strongly but linearly on the initial latched state, suggesting that the memory effect encoded in the plasmon resonance wavelength is linked to the strongly correlated electron states of the VO2. The continuous, linear variation of the electronic and optical properties of these model heterostructures opens the way to multiple design strategies for hybrid devices with novel optoelectronic functionalities, which can be controlled by an applied electric or optical field, strain, injected charge, or temperature.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project

<a href="/en/project/ED1.1.00%2F02.0068" target="_blank" >ED1.1.00/02.0068: Central european institute of technology</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

ACS Photonics

ISSN

2330-4022

e-ISSN

—

Volume of the periodical

2

Issue of the periodical within the volume

9

Country of publishing house

US - UNITED STATES

Number of pages

8

Pages from-to

1306-1313

UT code for WoS article

000361505000013

EID of the result in the Scopus database

2-s2.0-84942010504