シンクロトロン放射光とレーザーの組み合わせによる光電子分光実験 Photoemission Study Using a Combination of Synchrotron Radiation and Laser
Photoemission spectroscopy using a combination of synchrotron radiation (SR) and a laser is fascinating since various laser-induced phenomena occurring on solids and surfaces are directly observable. A pump-probe technique using SR and a Ti: sapphire laser that is synchronized with the SR can provide time-resolved photoemission spectra in the nanosecond region. Using this system, we have studied the surface photo-voltage effects on an n-GaAs (100) surface. We have also constructed an experimental system that enables time-resolved photoemission spectroscopy in the microsecond region. Time-resolved photoemission spectra in the microsecond region can be obtained using a laser light from Ti: sapphire regenerative amplifier with a frequency of 10-300 kHz and a gate system with a time window in the range of 10 ns to 50 ms for the photoemission signal.
レーザー研究 34(8), 544-548, 2006-08-15
The Laser Society of Japan