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Photonics Seminar: Yuzhe Xiao, University of Wisconsin-Madison

Join us March 23rd at 10:30am for a one-hour talk from Yuzhe Xiao, University of Wisconsin- Madison.

Title – Thermal-radiation engineering: innovations and opportunities

Abstract – Every hot object emits electromagnetic radiation, which is called thermal radiation or thermal emission. Thermal radiation is a ubiquitous phenomenon, with examples including the light emitting from the sun or from an incandescent lightbulb. Even though thermal radiation has been well-known from the century-old Planck’s law, recent applications of thermal radiation in energy harvesting, radiative cooling, and sensing have led to a renewed research interest of this topic. This talk aims to focus on four aspects of thermal radiation.

First, I will talk about the surprisingly nontrivial measurement of thermal radiation and describe our effort to achieve precision measurement of thermal radiation. Based on this measurement capability, then I will introduce depth thermography, a new metrology method that can measure the temperature distribution of an object as a function of depth. Further, I will talk about Planck spectroscopy, a spectroscopic technique that does not require wavelength-selective components such as prisms, gratings, or interferometers—instead using the temperature dependence of Planck’s law of thermal radiation.

The last part of my talk will cover the manipulation of thermal radiation, where I will show nano-second modulation of thermal radiation via modulated emissivity, with a speed much faster than the thermal time constant of the emitter. This talk will conclude with a discussion of future research opportunities of thermal-radiation engineering with quantum effects and strong nonlinear light-matter interaction.

Bio – Dr. Yuzhe Xiao is an assistant scientist at the University of Wisconsin-Madison. He received his Ph.D. degree from the Institute of Optics at the University of Rochester and was then a postdoc fellow at the University of California-San Diego. He has authored about 40 publications in the fields of thermal radiation, nonlinear optics, and quantum plasmonics. Dr. Xiao is the recipient of the WARE Innovation Award Finalist (2021, UW-Madison), the Agnes M. and George Messersmith Fellowship (2013, University of Rochester), and the Best Student Presentation Award at the Integrated Photonics Research Conference (2012, OSA).

For more information about this hybrid event, please contact:

Diana Strickland

Photonics Initiative


Zoom Access>>>

Meeting ID: 820 0905 8676

Passcode: 375990

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Event Information

March 23, 2022
10:30 am - 11:30 am
ASRC Auditorium
85 St. Nicholas Terrace
New York, NY 10031 United States
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