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Special Seminar: Mikhail Petrov, "High-index semiconductor nanostructures: towards nanoscale multifunctional devices"

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Special Seminar: Mikhail Petrov, "High-index semiconductor nanostructures: towards nanoscale multifunctional devices"
When Aug 21, 2017
from 11:00 AM to 12:00 PM
Where CCNY - CDI Building 2nd floor conference room
Contact Name
Contact Phone 212-650-7443
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Special Seminar:
Monday August 21st @ 11:00 am
CCNY - CDI Building 2nd floor conference room

High-index semiconductor nanostructures: towards nanoscale multifunctional devices     
by: Dr. Mikhail Petrov
ITMO University, Saint Petersburg, Russia

The talk will be focused on the physics and applications of high-index all-semiconductor nanostructures. Their strong resonant   electric and magnetic response opens new prospectives for application in photonics. We will discuss new methods of  nanomaterials fabrication and optical characterisation, and demonstrate that non-metallic nature of these materials can open new potential functionalities. In the talk we will report on how silicon nanoparticles  allow directional excitation of surface plasmon polaritons mimicking the Huygens elements for surface waves . The strong Raman response of silicon allows us to get efficient all-optical heaters with temperature control feedback. We discuss the resonant enhancement of strong second-harmonic generation from silicon nanoparticles, and identify the physics laying beyond that. The simultaneous control of different optical channels makes these structures to be very promising as a multifunctional optically driven nanoscale platforms.