Alexey V. Krasavin
Achievements
Comprehensive research programme on metamaterials and metasurfaces, including the studies of nonlocal, quantum and nonlinear phenomena, as well optomechanics, chiral effects and molecular fluorescence, which has resulted in a recent invited review in Chemical Reviews (impact factor 72).
Pioneering concept of 'active plasmonics' and its application for active control of SPP waves using structural (phase) transformations. In this context, I have presented the first microscale plasmonic switch, making an impact reflected in 300+ citations. Furthermore, I experimentally demonstrated the proposed concept and introduced a novel Ga/Al nano-composite nonlinear material.
Implementation of a hydrodynamic time-domain numerical model describing coherent interactions of free-carrier gas in nanostructured metallic materials of an arbitrary geometry with an optical pulse of an arbitrary temporal profile. For the first time, this approach allows to address in a non-perturbative way the phenomena of multiple and resonantly-enhanced harmonic generation and reveals an interplay between the nonlocal effects and topology of the nanostructure.
The idea and numerical demonstration of a concept for an ultrasmall integrated nanophotonic modulator, having a size of just 100 nm and utilising a drastic nanoscale electro-optic effect in degenerate semiconductors. It redefines the boundaries of optoelectronics bringing active control of optical signals to the nanoscale and creates a prospective backbone technology for future fully-functional hybrid electronic/photonic devices.
Development of a double-modulation pump-probe technique to perform ultra-sensitive optical gain measurements. The technique allowed me to demonstrate all-plasmonic modulation of co-propagating SPP signals at the interface with an Er-based gain medium. Moreover, for the first time I have developed an analytical theory of this process.
The innovative concept of SPP mode amplification via electric injection in metal-semiconductor heterostructures, opening a prospect for on-chip subwavelength data networks with an unmatched bandwidth. Furthermore, on its basis I have demonstrated the design of the first on-chip electrically-pumped coherent SPP source with subwavelength dimensions.
Development of extremely versatile active plasmonic circuitry on the basis of dielectric-loaded SPP waveguides. This work has had a major impact in the field of nano-optics, already generating 1000+ citations.
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