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 S07: Thermal radiation and energy management: Thermophotovoltaics
Thursday, 16/Sept/2021:
8:15 - 9:45

Session Chair: Marco Centini, Sapienza University of Rome, Italy
Location: Sala de Chiostro

1st Floor

8:15 - 8:45
ID: 108 / TOM7 S07: 1
TOM 7 Thermal radiation and energy management

Airbridge cells for ultra-efficient photovoltaic conversion of thermal radiation

Tobias Burger, Bosun Roy Layinde, Sean McSherry, Andrej Lenert

The University of Michigan, United States of America

In this talk, I will discuss the development of an InGaAs air-bridge cell that achieved a record-high peak conversion efficiency of 32% and our recent efforts to improve performance at high power densities.

8:45 - 9:15
ID: 112 / TOM7 S07: 2
TOM 7 Thermal radiation and energy management

Thermodynamics of light management in near-field thermophotovoltaics

Georgia Theano Papadakis1, Shanhui Fan2

1The Institute of Photonic Sciences - ICFO, Spain; 2Ginzton Laboratory, Stanford University, USA

We analyze near-field thermophotovoltaic (NFTPV) systems in terms of their open-circuit voltage (Voc). Unlike previous numerical results with fluctuational electrodynamics, we introduce a simple analytic model that captures the physics of NFTPV systems and predicts performance metrics. We show that (i) operating in the near-field naturally enhances radiative recombination and that (ii) owing to photon recycling and minimal radiation leakage, NFTPV systems can be much thinner compared to typical PV cells, thus reducing non-radiative losses. Combination of these effects leads to values of Voc that can approach the radiative limit.

9:15 - 9:45
ID: 172 / TOM7 S07: 3
TOM 7 Thermal radiation and energy management

Non-Hermitian nanophotonics for efficient thermophotovoltaics

Gururaj V. Naik

Rice University, United States of America

Thermophotovoltaic (TPV) devices convert thermal energy radiated from a hot emitter directly into electrical energy without any moving parts and are promising for many applications. However, current TPV devices suffer from poor efficiency stemming from inadequate spectral engineering of thermal photons. Here, we approach this challenge from a quantum route. Quantum description of thermal emitters requires non-Hermitian physics which allows powerful design tools, phase, symmetry, and topology. We demonstrate bright, directional, and large spectral contrast in thermal emission achieved by the non-Hermitian design, and thus enabling efficient TPV conversion.