In this thesis, I present a new method we developed to study low frequency (< 700 cm⁻¹) vibrational dynamics: Time-resolved third-harmonic generation (TRTHG) spectroscopy. Among a variety of vibrational spectroscopy techniques, TRTHG differentiates itself with robustness, versatility, and simplicity. In TRTHG experiment, that involves only two ultrashort laser pulses, the...
This study investigates nonlinear optical properties
of matter. Nonlinear optical effects have found a wide
field of applications such as the extension of the
operation range of lasers to higher frequencies, material
probes and optical image processing.
A brief introduction to the most common nonlinear
optical phenomena is given and...