Laboratory of Coherent Optics

Main Publications LCO

Laboratory Staff

The Movie: RQPM autocorrelator pattern variation with pulse delay.

Research focus:

• Optical and spectral properties of photonic crystals (PCs)
• Controllable PCs (electromagnetically induced transparency and Raman interaction)
• PCs with liquid-crystal inclusions
• Resonance PCs
• Nonlinear PCs
• Fast and slow light
• Nonlinear optical processes in metamaterials
• Nanocolloids: structural self-organization and interaction with optical radiation
• Study of the structural phase transformations in solid-state reactions and atomic ordering in thin films by transmission electron microscopy, high-resolution electron diffraction, and X-ray diffraction microanalysis

Advanced Results

1. Nonlinear-optical frequency conversion of femtosecond Ti : sapphire laser radiation in the stochastic quasi-phase-matching.
2. Nonlinear Cherenkov diffraction of femtosecond laser pulses in irregular domain structures of strontium tetraborate.
3. Generation of fs pulses down to 121 nm in strontium tetraborate.
4. Raman-induced gratings in atomic media.
5. Optical transistor based on a photonic crystal with Raman defect.
6. Polarization-optical characteristics of light in one-dimensional photonic crystals with a twisted nematic defect layer.
7. Solid-state reactions and order-disorder transitions in Pd/α‑Fe(001) thin films.
8. Two-photon dynamics in the coherent Rydberg atomic ensemble.

 Research Techniques

• Methods of nonlinear optics and quantum mechanics
• Computer simulation
• Experimental methods of optics, optical spectroscopy, and laser physics
• Electron microscopy

 Equipment

• TSUNAMI Femtosecond Laser (Spectra Physics)
• LEA-S500 Laser Elemental Analyzers (Solar TII)
• MSDD1000 Monochromator (Solar TII)
• Ocean Optics 2000 Spectrum Analyzer
• Solid-state lasers
• Supercontinuum Generation Module
• Single-Photon Detector
• Far- and Vacuum-Ultraviolet Spectrometer