longitudinally in big aperture with thin crystal, thus it cuts down the thermal consequences. It truly is an
For that reason, the problems system is quite complex, and it's urgent to grasp the laser induced harm mechanism of KDP-spouse and children crystals. With this paper, the cooperated investigation of Shanghai Institute of Optics and Mechanics with Fujian Institute of Analysis on the Construction of Make any difference, Shandong University together with other crystal investigate institutes is reviewed. The laser induced destruction Houses of KDP and DKDP crystals applied as optical switching, frequency doubling and frequency mixing optical things had been investigated. The optimization of crystal expansion process as well as the control of key elements were guided and the present problems and options were prospected. The investigate has reference benefit for the event of high overall performance KDP-family crystals and their rational software in substantial-electric power laser techniques.
a Deuterium distribution in DKDP crystals grown from options with distinctive deuterium contents and supersaturation amounts starting from 0.
Then the final results of neutron diffraction had been accustomed to calibrate the relationship among the deuterium material as well as the variation of PO4 vibration peak in Raman spectra and the absorption bands in IR spectra, respectively. In accordance with the Raman shifts of PO4 vibration peak of KDP and DKDP crystals with various levels of deuteration (Fig.
99% and ninety six.07%, respectively. The 0% laser-induced destruction threshold of Z-Slice in 1064 nm was about 40J/cm 2 , exceeding A lot much more than the application need in certain high power laser systems. The polarization point out of laser had minimal effect on the laser-induced injury properties of I-kind sample. Then the laser-induced harm morphologies of 98% DKDP crystals induced via the 1064 nm and 532 nm lasers ended up investigated. The results indicated which the "micro-explosion" of different kinds of defects in the majority brought about distinct harm morphologies, and a lot of cracks while in the problems pinpoints presented the standard orientation with much better consistency in perspective of your I-style period-match direction. Our investigate can offer a reference for the apps of highly deuterated DKDP crystals in substantial ability laser devices.
e., potassium or hydrogen) nearby. Crystals that contains each the 270-nm absorption band along with the Fe3+ EPR spectra were X-ray irradiated at home temperature after which you can subjected to the number of thermal anneals as many as one hundred fifty°C. These treatment options induced variations in equally the absorption band and also the EPR spectra, although the behaviors from the optical and EPR functions didn't correlate. This may be defined if a percentage of the Fe ions occupy a web site in the KDP crystals aside from the K+ web page. We suggest that a lot of the optical absorption from the 200-to-300nm area is because of Fe ions substituting for phosphorus; i.e., (FeO4)2�?molecular models are present while in the KDP crystals and provides increase to ultraviolet absorption.
DKDP box is generally useful for four hundred~1100nm Q-switched applications.Most lamp-pumped Nd:YAG lasers,ruby lasers,and lower repetition level DPSS lasers out there use DKDP Q-switched switches working with DKDP boxes。
gas discharging balance. But, the voltage about the crystal is equal for the DKDP fifty percent-wave
Progress on deuterated potassium dihydrogen phosphate DKDP Switch Crystal (DKDP) crystals for top electric power laser procedure software
parametric amplification phase by chirped pulses of idler radiation by using a wavelength of 1250 nm. The saturated attain of the
Assessment on period matching and compression of amplified chirped pulse for different deuteration level DKDP crystals
CH4 is the output voltage with the switch pulse generator. In the event the switch pulse voltage
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