High luminous fluorescence generation using Ce:YAG transparent ceramic excited by blue laser diode

High-efficiency diode-pumped Tm:YAG ceramic laser

A high efficient Tm:YAG ceramic laser at 2007 nm pumped by a diode laser was demonstrated. The laser performances with Tm doping concentrations of 4 at.% and 6 at.% were comparatively analyzed. The continuous-wave (CW) laser powers up to 2.11 W and 1.68 W have been obtained for Tm:YAG ceramics at 6 at.% and 4 at.% doping levels, corresponding to the slope efficiencies of 43.6% and 53.8% respect...

Laser Excited Fluorescence of Dityrosine

High-repetition-rate combustion thermometry with two-line atomic fluorescence excited by diode lasers.

We report on kilohertz-repetition-rate flame temperature measurements performed using blue diode lasers. Two-line atomic fluorescence was performed by using diode lasers emitting at around 410 and 451 nm to probe seeded atomic indium. At a repetition rate of 3.5 kHz our technique offers a precision of 1.5% at 2000 K in laminar methane/air flames. The spatial resolution is better than 150 microm...

Generation of High Order Harmonics from H2+ Molecule Ion by Using Homogenous and Inhomogeneous Laser Fields

We solved one dimensional Schrodinger equation in a H2+ molecular environment by using 3 femtosecond homogeneous and nonhomogeneous laser fields. In homogeneous case, we found out that larger inter nuclear distances result in earlier ionization and also more instability in the wave packet. We deducted that the more the instability is, the more modulated the power spectrum will be. So, by choosi...

High-Resolution Stark Spectroscopy of Ba Highly-Excited States by Diode Laser Technique

High-resolution atomic-beam laser spectroscopy has been performed to study Stark effect of Ba atom. Stark spectra have been observed at various electric fields for Ba highly excited states. The scalar polarizability of the transition from 6s5d3D2 to 5d6p3F3 at 728.0 nm and the tensor polarizability of the 3F3 level have been determined for the first time, to be αs = −89.8 (12) kHz/(kV/cm)2 and ...