Open AccessOptical Heating Controlled With a Thermoplasmonic Metasurface
Author(s) -
E. A. Chernykh,
A N Filippov,
А. В. Алексеев,
M. A. Makhiboroda,
Sergey S. Kharintsev
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2015/1/012029
Subject(s) - materials science , tin , photothermal therapy , plasmon , joule heating , titanium nitride , optoelectronics , laser , substrate (aquarium) , joule (programming language) , titanium , surface plasmon resonance , finite difference time domain method , thin film , chalcogenide , optics , nitride , nanotechnology , layer (electronics) , composite material , power (physics) , oceanography , physics , quantum mechanics , geology , nanoparticle , metallurgy
We develop a photothermal technology to control optical heating of polymer and liquid crystal films through a refractory titanium nitride (TiN) metasurface. The metasurface represents an array of identical square-shaped TiN nanoantennas on a Si substrate. Upon CW laser illumination, a TiN nanoantenna experiences anomalous Joule heating at a plasmon resonance. A temperature rise provides a unique opportunity for locally probing phase transitions. In the case of heterogeneous PMMA thin films or polymeric blends, a controlled optical heating is needed to probe the glass transition temperature (T g ) of their constituents. Here, we model a controlled thermal response originating from the TiN nanoantenna under CW laser illumination by using FDTD/FEM methods.