Laser enhanced ionization (LEI) spectrometry of rare-earth elements cerium (Ce) and lutetium (Lu) have been researched for the first time and Ce Ⅰ 578.815nm, Ce Ⅰ 574.353nm, Lu Ⅰ 573.655nm were detected by tunable Rodamine 6G dye laser pumped by YAG laser.
Next, schemes forthe production of two-photon quantum-entangled states by SPDC are introduced, withparticular emphasis on the generation by continuous wave laser pumping of a BBOcrystal satisfying type II phase matching conditions;
Single crystal of Yb x Y 1- x Al 3(BO 3) 4 (Yb∶YAB) was grown by using flux method with potassium trimolybdate. 160 mW efficient cw green output was obtained by a fibre coupled 976 nm laser diode pumping. The conversion efficiency is greater than 11 3%, and the pumping conversion efficiency is 3 9%.
The tapered and semi-tapered fiber can be arranged in line or array, which has the wide application to the Laser Diode Pumping Solid State Laser and the power outputting of the high-power laser diode array.
A Dye laser, which emits laser pulse with 77mJ pulse energy at wavelength 589nm, pumped by Nd:YAG laser, and 1m aperture receiving telescope are used to achieve the desired performance levels in the lidar system.
The main technology for high power fiber lasers, including laser diode beam shaping, fiber laser pumping techniques, and amplification systems, are discussed in detail.
For the Y3Al5O12: Nd3+ laser ceramics, the use of a longitudinal scheme with a diode-laser pumping at a wavelength of 1.3186 mm (4F3/2 → 4I13/2 channel) enabled one to attain an output power of continuous-wave lasing of ～3.7 W with 35% efficiency.
This model describes the destruction of a metal under intense laser pumping.
The spectral, time, and energy parameters of stimulated Raman scattering (SRS) were measured for ten crystals using picosecond YLF: Nd laser pumping with a radiation wavelength of 1047 nm.
4T2→4A2 transition in the luminescence spectra of Mn4+ ion in gadolinium gallium garnet at intense laser pumping
Coherent anti-Stokes Eaman spectroscopy provides distinct advantages due to its high efficiency, high resolution, suppression of back-ground fluorescence and coherent anti-Stokes character. An experimental arrangement employing two dye lasers pumped by a single nitrogen laser has been set up for CABS and the output signal is detected with photomultiplier and boxcar integrater. Spectra of benzene, toluene and a series of halogen substituted benzene derivatives ia the vicinity of 1000cm-1 have been measured.
The pumping model for an electron-beam controlled dischaging laser is described.A cold-cathode electron beam controlled dischaging CO_2 laser system with 8 litres of excitation volume was designed on the basis of this model,and its operation eharacteristics are in agreement with the predicted ones.
An injection-locked dye laser has been constructed with a four-mirror ring Eh-6G dye laser pumped by a pulsed xenon ion laser. The output line at 5960 A of the xenon-ion laser is used as the injection source. The characteristics of the output intensity and spectra of the injection-locked dye laser are also investigated.