Conference Agenda

Topical Meetings and Sessions:

TOM 1 - Silicon Photonics and Guided-Wave Optics
TOM 2 - Computational, Adaptive and Freeform Optics
TOM 3 - Optical System Design, Tolerancing and Manufacturing
TOM 4 - Bio-Medical Optics
TOM 5 - Resonant Nanophotonics
TOM 6 - Optical Materials: crystals, thin films, organic molecules and polymers, syntheses, characterization and devices
TOM 7 - Thermal radiation and energy management
TOM 8 - Nonlinear and Quantum Optics
TOM 9 - Optics at Nanoscale (ONS)
TOM 10 - Optical Microsystems (OMS)
TOM 11 - Waves in Complex Photonic Media
TOM 12 - Optofluidics
TOM 13 - Ultrafast Optical Technologies and Applications
TOM 14 - Advances and Applications of Optics and Photonics
EU Project Session
Early Stage Researcher Session organised by SIOF
Grand Challenges of Photonics Session

More information on the Topical Meetings

Select a date or location to show only sessions at that day or location. Select a single session for detailed view (with abstracts and downloads when you are logged in as registered attendee). Plenary speeches, tutorials, and Early Researcher session will be updated very soon. Thank you for your patience!

Session Overview
TOM7 S01: Thermal radiation and energy management: Nanoscale Heat Transfer 1
Tuesday, 14/Sept/2021:
14:15 - 15:45

Session Chair: Mauro Antezza, Université de Montpellier, France
Location: Sala de Chiostro

1st Floor

14:15 - 14:45
ID: 212 / TOM7 S01: 1
TOM 7 Thermal radiation and energy management

Near-field radiative heat transfer in many-body systems: thermal management and energy harvesting

Philippe Ben-Abdallah

Laboratoire Charles Fabry, CNRS, Institut d'Optique, France

In this talk I will discuss some peculiarities of radiative heat exchanges in many-body systems which can be used to control heat flow at nanoscale and to harvest the near-field energy confined close to a hot solid. I will start by introducing two thermomagnetic effects in non-Hermitian systems. In the second part I will explore the possibility to harvest the near-field energy confined close to a solid using graphene-based many-body pyroelectric converters.

14:45 - 15:15
ID: 117 / TOM7 S01: 2
TOM 7 Thermal radiation and energy management

Near-field radiative heat transfer eigenmodes

Alejandro Manjavacas1,2

1University of New Mexico, United States of America; 2Instituto de Óptica - CSIC, Spain

At the nanoscale, the radiative heat transfer between hot objects can greatly surpass the limits established by far-field blackbody radiation. In this talk, we will introduce a theoretical framework to efficiently describe the thermalization dynamics of ensembles of nanostructures mediated by radiative heat transfer. Using this formalism, which is based on an eigenmode expansion of the equations that govern the process, we will discuss the fundamental principles that determine the thermalization of collections of nanostructures with thousands of elements and reveal general but often unintuitive dynamics.

15:15 - 15:45
ID: 111 / TOM7 S01: 3
TOM 7 Thermal radiation and energy management

Thermal management and non-reciprocal control of phonon flow via optomechanics and Machine learning the thermodynamic arrow of time

Mohammad Hafezi

University of Maryland, United States of America

We discuss two topics on the non-reciprocal flow entropy: (1) We propose an engineered nanostructured material, in which tunable non-reciprocal phonon transport is achieved through optomechanical coupling. (2) The asymmetry in the flow of events that is expressed by the phrase ‘time’s arrow’ traces back to the second law of thermodynamics. We find that a machine learning algorithm that is trained to infer the direction of time’s arrow identifies entropy production as the relevant physical quantity in its decision-making process.