• Technical Conference: 

    09 – 14 May 2021

  • Exhibition: 

    10 – 14 May 2021

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FTu2K

Thermal Effects in Nano-optics for Thermal Radiation

Presider: Peter Catrysse, Stanford University

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Presentations

Picometric Ballistic (non-Brownian) Thermal Movements in Photonic Nanostructures (FTu2K.1)
Presenter: Tongjun Liu, University of Southampton

Components of photonic nanostructures exhibit picometric thermal movements affecting their optical properties. We report the first observation of ballistic (non-Brownian) thermal motion of a microcantilever, at timescales shorter than those of the erratic Brownian regime.

Authors:Tongjun Liu, University of Southampton / Jun-Yu Ou, University of Southampton / Kevin MacDonald, University of Southampton / Nikolay Zheludev, University of Southampton

  Paper

(Withdrawn) Photothermal Response of Single Gold Nanoparticles Through Hyperspectral Imaging Anti-Stokes Thermometry (FTu2K.2)
Presenter: Mariano Barella, CIBION - CONICET

We present an implementation of anti-Stokes thermometry that is potentially applicable to any nanoparticle with detectable photoluminescence, requires no assumption or previous characterization of the nanoparticle, and delivers the photothermal coefficient of the nanoscopic system.

Authors:Mariano Barella, CIBION - CONICET / Ianina Violi, CIBION - CONICET / Julian Gargiulo, Ludwig-Maximilians-Universität München / Luciana Martinez, CIBION - CONICET / Florian Goschin, Ludwig-Maximilians-Universität München / Victoria Guglielmotti, UNSAM / Diego Pallarola, UNSAM / Sebastian Schlücker, University of Duisburg-Essen / Mauricio Pilo-Pais, University of Fribourg / Guillermo Acuna, University of Fribourg / Stefan Maier, Ludwig-Maximilians-Universität München / Emiliano Cortes, Ludwig-Maximilians-Universität München / Fernando Stefani, CIBION - CONICET

(Withdrawn) Thermal Effects - an Alternative Mechanism for Plasmon-Assisted Photocatalysis (FTu2K.3)
Presenter: Yonatan Sivan, Ben-Gurion University

We show that the claims in some of the most famous papers on the topic of plasmon-assisted photocatalysis are extremely unlikely to be correct and that the faster reactions are likely the result of heating.

Authors:Yonatan Dubi, Ben-Gurion University / Joshua Baraban, Ben-Gurion University / Ieng-Wai Un, Ben-Gurion University / Yonatan Sivan, Ben-Gurion University

Analysis of Dissipation Mechanisms and Thermal Dynamics in Nanophotonic Resonators Using Thermo-Optical Effect (FTu2K.4)
Presenter: MingKang Wang, NIST

We present a robust method to distinguish the absorption loss from other loss mechanisms in a nanophotonic resonator by characterizing its thermo-optical nonlinearity. Using this method, we analyze ten modes of drastically different quality-factors.

Authors:MingKang Wang, NIST / Diego Perez-Morelo, NIST / Vladimir Aksyuk, NIST

  Paper

Optothermal Generation and Manipulation of Plasmons in in Atomically Thin Films (FTu2K.5)
Presenter: Eduardo Dias, ICFO - The Institute of Photonic Sciences

We demonstrate the ability of graphene and thin metal films to undergo ultrafast photothermal optical modulation under pump-probe conditions, with depths as large as >70% over a wide spectral range.

Authors:Eduardo Dias, ICFO - The Institute of Photonic Sciences / Renwen Yu, ICFO - The Institute of Photonic Sciences / Javier García de Abajo, ICFO - The Institute of Photonic Sciences

  Paper

Solution-Processed Plasmonic Surfaces as Optical Components for Infrared Thermography (FTu2K.6)
Presenter: Jyotirmoy Mandal, University of California, Los Angeles

Plasmonic nanoparticle-coated metal substrates, created with common materials and scalable fabrication techniques, yield solar absorptance and LWIR reflectance comparable to yields of standard germanium-based optics used in thermography, but at a fraction of the cost.

Authors:Jyotirmoy Mandal, University of California, Los Angeles / John Brewer, University of California, Los Angeles / Sagar Mandal, Independent Researcher / Aaswath Raman, University of California, Los Angeles

  Paper

Impact of Nonlocality on Polar Nanophotonics (FTu2K.7)
Presenter: Christopher Gubbin, University of Southampton

In nanoscale polar resonators local theories of the optical response can break down. Here we develop theories to understand these effects, demonstrating novel phononphoton interactions with applications in mid-infrared nanophotonics and optoelectronics.

Authors:Christopher Gubbin, University of Southampton / Simone De Liberato, University of Southampton

  Paper