Quantum dots for THz technology

Add to your list(s) Download to your calendar using vCal

• Juliette Mangeney (Laboratoire Physique de l’Ecole Normale Supérieure)
• Thursday 07 July 2022, 15:00-16:00
• Physics West SR1 (103).

If you have a question about this talk, please contact Dr Miguel Navarro-Cia.

Terahertz (THz) radiation is extremely appealing for fundamental investigations of matter and emerging applications, such as security screening, medical imaging, astrophysics and atmospheric science. However, the THz spectral range remains under-developed mainly due to the lack of compact and efficient sources and detectors. To support the development of THz technology, major efforts are underway to explore new physical effects in materials. Due to their unique optical and electrical properties that are directly related to their nanoscale structures, quantum dots are promising candidates for the development of THz quantum devices as high sensitivity detectors, lasers and single photon emitters. This talk will focus on the potential of large graphene quantum dots and large HgTe nanocrystals for the development of advanced THz devices. I will first present the THz properties of large graphene quantum dots, the recent technological developments for their fabrication and their quantum response to THz illumination. Then I will present the THz properties of large HgTe nanocrystals and the dynamics of hot carriers in these HgTe quantum dots.

This talk is part of the Metamaterials and Nanophotonics Group Seminars series.

This talk is included in these lists:

• Bham Talks
• Metamaterials and Nanophotonics Group Seminars
• Physics West SR1 (103)
• What's on in Physics?

Note that ex-directory lists are not shown.