Gain through losses in nonlinear optics

Adaptive-Optics Compensation through a High-Gain Raman Amplifier

The applicability ofRaman amplification to the problem ofhigh-power laser propagation through a turbulent atmosphere was investigated in a two-part experimental program. The goal of the program wasto determine the extent ofphasefront preservation possible in a high-gain Raman amplifier. The utility ofan unconventional approach to adaptiveoptics compensation, known as "Raman look-through," was e...

Nonlinear Optics Basics: Kramers-Krönig Relations in Nonlinear Optics

Nonlinear Models in Quantum Optics through Quantum Algebras

with a, b, c being boson operators for three different modes of the radiation field, describes (under certain conditions) nonlinear quantum optical processes as frequency conversion and Raman and Brillouin scattering [1]. Through a Jordan–Schwinger transformation, this model is algebraically equivalent to the resonant interaction of a sample of two-level atoms with a single mode of the quantize...

Synthesis of TiO2-ZnO-ZrO2 Nanocomposites for Nonlinear Optics Applications

A sol-gel technique under ultrasonic irradiation was applied to synthesize ZrO2/TiO2/ZnOnanocomposites. X-ray diffraction analysis confirmed the successful synthesis of nanocomposites. The strain and crystalline size values of ZrO2/TiO2/ZnO nanocomposites are estimated to be 9.98×10-4 and 17.66 nm, respectively. The linear absorption coefficient of ZrO2/TiO2/ZnO nanocomposites was measure...

Developments in Relativistic Nonlinear Optics

We report recent results of experiments and simulations in the regime of peak laser intensities above 10 W/cm, including the following topics: (1) electron and proton acceleration to energies in excess of 10 MeV in well collimated beams; (2) use of laser chirp to control the growth of plasma waves and acceleration of electrons by the Raman instability; (3) all optical injection and acceleration...