High-repetition-rate tunable dye lasers pumped by copper vapor laser

Abstract

For bulk InSb at the quantum limit, it is shown that the lowering of the Landau levels is associated with excitation of excess electron-hole pairs by the action of the J x H force, when the stimulated emission sets out, and that the value of the gain of the emission becomes extremely high, diverging as w,i-m in accordance with the observation.Recent experiments carried out at the quantum limit [I-31 have revealed for the first time that stimulated interband Landau emission is brought about by the electromagnetic force (EMF) excitation with an outstanding low value of the critical current densities, such that J , = 16-40 A cm-', when a current J is passed through a bulk InSb plate subjected to a transverse, high magnetic field H up to 7T. The stimulated emissions, identified as a, and u2 emissions in figure 1, have been observed at temperatures from 4.2 to 135K a s long as the quantum limit condition hw,, > kT is satisfied, where w c , = eH/m,*c is the cyclotron frequency of electrons with the electric charge e and the effective mass in:, c is the light velocity, h is Planck's cunsiani, k is ihe Boltzmann constant, and T i s temperature (see reference

Study of output power of very high pulse repetition rate (18 kHz) dye laser pumped by frequency doubled diode pumped Nd: YAG laser (λ~ 532 nm)

“…Continuous tunability, efficient narrowband operation, wide spectral range and simplicity of the dye laser have made it an indispensable tool in many areas of research and applications such as high resolution laser spectroscopy, laser induced fluorescence spectroscopy, resonance ionization mass spectroscopy, photochemistry, atomic vapor laser isotope separation (AVLIS), ultrafast pulse amplification, holography and medical applications [1][2][3][4][5][6][7][8]. High repetition rate pulsed tunable dye lasers are produced by interaction of a pump beam with a dynamic dye solution which circulates in a closed loop.…”

Linewidth of a high pulse repetition rate (~20 kHz) class dye laser

“…High pulse repetition rate (HPRR), tunable dye lasers have applications in photochemistry, chemical kinetics, isotope separation, photobiology and spectroscopy [1][2][3][4]. The HPRR dye laser requires the dye solution to be flown at high speed through the dye cell to remove the heat deposited by the pump beam [5].…”

Design, modeling, and performance evaluation of a novel dye cell for a high repetition rate dye laser

“…[8][9][10][11][12] Zemskov et al 8 used planar nozzle of 0.5 × 6 mm dimensions and studies the energy and time characteristics of jet dye laser pumped by copper vapor laser (CVL) operating at 10 kHz. Pease and Pearson 9 investigated pulse to pulse mode structure fluctuations in narrow linewidth dye laser pumped by CVL (6 kHz) using 8 mm dye cell.…”

“…Pease and Pearson 9 investigated pulse to pulse mode structure fluctuations in narrow linewidth dye laser pumped by CVL (6 kHz) using 8 mm dye cell. Zherikin et al 10 used slitlike gap of 15 × 0.5 mm rectangular quartz cell and studied the efficiencies, narrow bandwidth operation, and tunable second harmonic generation of a dye laser operating at 10 kHz. Bernhardt and Rasmussen 11 have used quartz dye cell having internal dimensions approximately 8 × 8 × 22 mm and a curved metal piece was inserted into the dye cell to constrict the flow through an area 8 × 0.3 mm across the pumping region.…”