DLS: Mischa Bonn - Graphene Terahertz Photonics
3.2 هزار بار بازدید -
4 سال پیش
-
Higher harmonics of THz radiation,
Higher harmonics of THz radiation, with unprecedented efficiency
Graphene is an attractive candidate for many optoelectronic applications because of its vanishing bandgap and high carrier mobility. Ultrashort terahertz (THz) pulses interact strongly with charge carriers in graphene. On the one hand, this strong interaction allows to probe the conductivity within one layer of graphene on ultrafast timescales. On the other hand, the strong interaction can be used for the efficient heating of charge carriers, when strong THz fields are applied. This process, in turn, can be used to generate higher harmonics of THz radiation, with unprecedented efficiency: 1% of the terahertz field can be converted into its third harmonic with a single pass through the 3.3 Å thin graphene monolayer. Higher (fifth, seventh, ninth, …) harmonics can also be readily generated.
The Distinguished Lecturer Series brings leading minds from all areas relevant to the science of light to MPL in Erlangen. It presents the unique opportunity for scientific exchange with the speakers to a broad audience.
The topics range from terahertz optics with graphene, over self-organising proteins to particle accelerators on a chip. One special highlight will be the talk of the Canadian optical physicist Donna Strickland, Nobel laureate of 2018.
All lectures will start at 15.00 CET and will be transmitted via stream. If you would like to attend, please register here for our DLS newsletter:
https://mpl.mpg.de/newsletter/
You will then receive the link for the zoom conference by e-mail shortly before the presentation.
Click here for an overview of all the lectures:
https://mpl.mpg.de/news-events/dls/
#photonics #graphene #DistinguishedLecturerSeries #dlsMPL
Graphene is an attractive candidate for many optoelectronic applications because of its vanishing bandgap and high carrier mobility. Ultrashort terahertz (THz) pulses interact strongly with charge carriers in graphene. On the one hand, this strong interaction allows to probe the conductivity within one layer of graphene on ultrafast timescales. On the other hand, the strong interaction can be used for the efficient heating of charge carriers, when strong THz fields are applied. This process, in turn, can be used to generate higher harmonics of THz radiation, with unprecedented efficiency: 1% of the terahertz field can be converted into its third harmonic with a single pass through the 3.3 Å thin graphene monolayer. Higher (fifth, seventh, ninth, …) harmonics can also be readily generated.
The Distinguished Lecturer Series brings leading minds from all areas relevant to the science of light to MPL in Erlangen. It presents the unique opportunity for scientific exchange with the speakers to a broad audience.
The topics range from terahertz optics with graphene, over self-organising proteins to particle accelerators on a chip. One special highlight will be the talk of the Canadian optical physicist Donna Strickland, Nobel laureate of 2018.
All lectures will start at 15.00 CET and will be transmitted via stream. If you would like to attend, please register here for our DLS newsletter:
https://mpl.mpg.de/newsletter/
You will then receive the link for the zoom conference by e-mail shortly before the presentation.
Click here for an overview of all the lectures:
https://mpl.mpg.de/news-events/dls/
#photonics #graphene #DistinguishedLecturerSeries #dlsMPL
4 سال پیش
در تاریخ 1399/09/11 منتشر شده
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