14:15 〜 14:30
▲ [20p-211B-2] Simple Techonolgy to Freely Manipulating Nonlinear Optical Frequency Conversion Processes
キーワード：optical frequency conversion, phase manipulation, four-wave-mixing
Nonlinear optical processes are strongly governed by phase relationships among the relevant electronmagnetic fields. We proposed the idea that phase relationships among the relevant electromagnetics fields could be manipulated arbitrarily in nonlinear optical frequency conversion process. It can be easily implemented using glass plates inserted into nonlinear medium.
We firstly applied the technology to a Raman-resonant four-wave-mixing process in parahydrogen gas medium experimentally. Coherence established by using two incident electricmagnetic fields(ω0,ω-1) coherently exciting parahydrogen molecules. The coherent molecules modulate an additional incident field(ωT0) to generate its discrete equidistant radiations(ωT±1, ωT±2, …). Due to manipulating their phase ralationships, the energy of additional incident field(ωT0) could be gathered at its first Stokes ωT-1 or its first anti-Stokes ωT1 at will.
Manipulating among higher order Stokers or anti-Stokes is also feasible. With this technology, it's expected that tunable single frequency pulsed laser throughout the vacuum-ultraviolet range could be generated in future.
We firstly applied the technology to a Raman-resonant four-wave-mixing process in parahydrogen gas medium experimentally. Coherence established by using two incident electricmagnetic fields(ω0,ω-1) coherently exciting parahydrogen molecules. The coherent molecules modulate an additional incident field(ωT0) to generate its discrete equidistant radiations(ωT±1, ωT±2, …). Due to manipulating their phase ralationships, the energy of additional incident field(ωT0) could be gathered at its first Stokes ωT-1 or its first anti-Stokes ωT1 at will.
Manipulating among higher order Stokers or anti-Stokes is also feasible. With this technology, it's expected that tunable single frequency pulsed laser throughout the vacuum-ultraviolet range could be generated in future.