New concept of laser fusion driver using Stimulated Brillouin
... 1. Compensate the phase distortions such as birefringence, thermal lensing effect, etc. 2. Perfect optical isolation possible ...
... 1. Compensate the phase distortions such as birefringence, thermal lensing effect, etc. 2. Perfect optical isolation possible ...
Adaptive secondary mirrors
... • If sodium layer is illuminated with a single frequency laser tuned to the peak of the D2 line only a few per cent (of order 10 MHz/1GHz) of the atoms travel in a direction to interact at all with the radiation field. • These atoms interact strongly with the radiation until they collide or change d ...
... • If sodium layer is illuminated with a single frequency laser tuned to the peak of the D2 line only a few per cent (of order 10 MHz/1GHz) of the atoms travel in a direction to interact at all with the radiation field. • These atoms interact strongly with the radiation until they collide or change d ...
Effect of input pulse chirp on nonlinear energy deposition and
... The initial stage of laser energy deposition consists in the generation of a localized weakly ionized plasma with typical density of one electron per hundreds of molecules in the focal region of the laser beam (see, e.g., [12,13] for reviews on laser-plasma interaction in solids and [7,14–18] and re ...
... The initial stage of laser energy deposition consists in the generation of a localized weakly ionized plasma with typical density of one electron per hundreds of molecules in the focal region of the laser beam (see, e.g., [12,13] for reviews on laser-plasma interaction in solids and [7,14–18] and re ...
Diffractive optical element and optical pickup apparatus
... invention Will become clear from the folloWing description, taken in conjunction With the preferred embodiments With reference to the accompanying draWings in Which: [0049] FIG. 1 is a construction diagram schematically shoWing an optical pickup apparatus embodying the inven ...
... invention Will become clear from the folloWing description, taken in conjunction With the preferred embodiments With reference to the accompanying draWings in Which: [0049] FIG. 1 is a construction diagram schematically shoWing an optical pickup apparatus embodying the inven ...
Development of a process for characterization of Nd:YAG crystals
... The objectives of this thesis were to develop a methodology for the measurement of laser beam characteristics from a single cavity laser and to establish a preliminary guideline that would determine which crystals were acceptable for use in production of laser devices. These objectives were achieved ...
... The objectives of this thesis were to develop a methodology for the measurement of laser beam characteristics from a single cavity laser and to establish a preliminary guideline that would determine which crystals were acceptable for use in production of laser devices. These objectives were achieved ...
A pulsed dye laser for photo-ionization of magnesium atoms
... Magnesium atoms can be ionized through a two-step process using a dipole allowed transition at 285 nm as resonant excitation step. Unfortunately, light at 285 nm is not easily produced by simple solid state laser systems like diode lasers, while dye lasers can easily be tuned to emit at 570 nm. Then ...
... Magnesium atoms can be ionized through a two-step process using a dipole allowed transition at 285 nm as resonant excitation step. Unfortunately, light at 285 nm is not easily produced by simple solid state laser systems like diode lasers, while dye lasers can easily be tuned to emit at 570 nm. Then ...
Laser beam profiler
A laser beam profiler captures, displays, and records the spatial intensity profile of a laser beam at a particular plane transverse to the beam propagation path. Since there are many types of lasers — ultraviolet, visible, infrared, continuous wave, pulsed, high-power, low-power — there is an assortment of instrumentation for measuring laser beam profiles. No single laser beam profiler can handle every power level, pulse duration, repetition rate, wavelength, and beam size.