Ramazan Şahin – Research Group

COMPUTATIONAL PHYSICS

We use FDTD/BEM numerical analysis techniques for modeling computational electrodynamics. Our computers are powerful enough to provide simulations to solve the propagation of light in complex environments that match reality as closely as possible.
AtomIc/ Molecular ResolutIon MIcroscopy

Our studies not only focus on experimental direct observation of atoms/molecules but we are also interested in improving present microscopic techniques via joining quantum optics and commercial setups together. Our lab owns its prominent Atomic Force Microscope in which it can be operated in STM, MFM, EFM, I-AFM, Nanolithography etc.
Nanoscale PatternIng and FabrIcatIon

Advancements in technology and the progression in the micro and nano-fabrication facilities allow us producing complex nanostructures for a variey of applications. We can fabricate nanoparticles through wet-chemistry, periodic nanosturctures by direct writing method through ultrafast laser abation. We also perform quantum plasmonic experiments by placing very small quantum objects (molecule or QD) near these nano-structures.
Ultrafast and Non-LInear OptIcs (Femtosecond Lasers)

We are an experienced group in ultrafast (femtosecond pulses) optics. Our ongoing projects include both ultrafast lasers and controlling light-matter interactions at ultrafast regime.

Computational Physics

Atomic/ Molecular Resolution Microscopy

Nanoscale Patterning/ Fabrication

Ultrafast and Non-Linear Optics

About Our Group

In our group, we study light-matter interaction at nanoscale dimensions. By adopting theoretical methods of Classical Electrodynamics, Quantum Mechanics and Condensed Matter Physics, the group describes light scattering and emission from nanostructures and molecules in a variety of spectroscopy and microscopy configurations.

Through these configurations, addressed in the form of Surface Enhanced Raman Spectroscopy (SERS), Surface Enhanced Infrared Absorption (SEIA), Scanning Tunneling Microscope (STM), Atomic Force Microscope (AFM), Scattering Near Field Optical Microscope (SNOM), different dynamical aspects of light matter interaction are investigated and studied.

During the last year, the main impact of our research has been in the field of Quantum plasmonics and optical nanoantennas and more specifically, in the role of quantum effects in the optoelectronic metallic nanostructures and molecular entities located within those plasmonic nanocavities.