Computational Photonics & Plasmonics
Computational Photonics & Plasmonics
Recent advances in the field of nanoscience has led to the possibility to generate, control and manipulate electromagnetic fields at extreme-subwavelength scales. Driven by the ongoing race to miniaturization, researchers are now able to design and fabricate high-performance ultradense devices in exquisite architectures, including but not limited to the high-photon yield photodetectors, precise biochemical sensors, and fast modulators. Recently, I have been working on developing efficient integrated devices based on ultratight confinement of electromagnetic fields in tiny spots and generation of hot carriers. In this way, we have successfully addressed fundamental challenges in improving the performance of optical and optoelectronic instruments.
Recent advances in the field of nanoscience has led to the possibility to generate, control and manipulate electromagnetic fields at extreme-subwavelength scales. Driven by the ongoing race to miniaturization, researchers are now able to design and fabricate high-performance ultradense devices in exquisite architectures, including but not limited to the high-photon yield photodetectors, precise biochemical sensors, and fast modulators. Recently, I have been working on developing efficient integrated devices based on ultratight confinement of electromagnetic fields in tiny spots and generation of hot carriers. In this way, we have successfully addressed fundamental challenges in improving the performance of optical and optoelectronic instruments.
Metamaterials & Metadevices
Metamaterials & Metadevices
The remarkable advantages of robust electromagnetic field confinement in resonant systems have thrust metasurface research from relative obscurity into the important limelight. In recent years, I have devised well-engineered resonant meta-atoms and employed these structures in developing advanced, high-responsive, and cost-effective photonic devices. I have performed several designs based on distinct classes of excitations with nonradiating properties and ultranarrow lineshapes. This resulted in the emergence of promising and efficient metadevices for various applications from sensing to switching.
The remarkable advantages of robust electromagnetic field confinement in resonant systems have thrust metasurface research from relative obscurity into the important limelight. In recent years, I have devised well-engineered resonant meta-atoms and employed these structures in developing advanced, high-responsive, and cost-effective photonic devices. I have performed several designs based on distinct classes of excitations with nonradiating properties and ultranarrow lineshapes. This resulted in the emergence of promising and efficient metadevices for various applications from sensing to switching.
Quantum Plasmonics
Quantum Plasmonics
Conversion of electrons to photons and subsequently, untraditional light emission from electromigrated tunneling junctions is an intriguing phenomenon with immense potential to be utilized in active photochemistry, optoelectronics, and quantum optics. Inelastic tunneling of electrically driven electrons through a metal-insulator-metal junction enables the creation of either phonons or photons in the system. When electrons tunnel through the deep subnanometer opening between electrically-biased nanoelectrodes, they lose part of their energy, leading to the transition of electrons to a lower energy level in the metallic electrodes. The result of this mechanism is the radiation of photons from the nanoantenna, which stems from the transformation of electronic energy into surface plasmon polaritons. Ultimately, by extending this context to the configurations that are tightly coupled to the multilevel systems (i.e. quantum dots, carbon nanotubes, etc.), the possibility of the strong plasmon-exciton coupling, formation of Rabi oscillations, and the augmented Purcell effect are will be assessed.
Conversion of electrons to photons and subsequently, untraditional light emission from electromigrated tunneling junctions is an intriguing phenomenon with immense potential to be utilized in active photochemistry, optoelectronics, and quantum optics. Inelastic tunneling of electrically driven electrons through a metal-insulator-metal junction enables the creation of either phonons or photons in the system. When electrons tunnel through the deep subnanometer opening between electrically-biased nanoelectrodes, they lose part of their energy, leading to the transition of electrons to a lower energy level in the metallic electrodes. The result of this mechanism is the radiation of photons from the nanoantenna, which stems from the transformation of electronic energy into surface plasmon polaritons. Ultimately, by extending this context to the configurations that are tightly coupled to the multilevel systems (i.e. quantum dots, carbon nanotubes, etc.), the possibility of the strong plasmon-exciton coupling, formation of Rabi oscillations, and the augmented Purcell effect are will be assessed.