YCOB,a member of the new crystal family of ReCOB (ReCOB=ReCa 4O(BO 3) 3,Re=La 3+ ,Nd 3+ ,Sm 3+ ,Gd 3+ ,Er 3+ ,Y 3+ ),has received mo re and more attentions in recent few years,because of its excellent nonlinear op tic...YCOB,a member of the new crystal family of ReCOB (ReCOB=ReCa 4O(BO 3) 3,Re=La 3+ ,Nd 3+ ,Sm 3+ ,Gd 3+ ,Er 3+ ,Y 3+ ),has received mo re and more attentions in recent few years,because of its excellent nonlinear op tical (N LO) properties and a great promise as a laser host material.Unfortunately,liking most of nonlinear optical crystals,the laser induced damages were also created in the new crystal family when irradiated by ultraviolet laser.In this report we present our preliminary results of the investigation on the radiation induced damage in YCOB crystals.展开更多
NaCl(OH^(-)):(F_(2)^(+))is a color center laser crystaJ with best laser performance and imPortant applications at Present.We have succeeded in develoPing this crystal and realizing its laser operation.For raising the ...NaCl(OH^(-)):(F_(2)^(+))is a color center laser crystaJ with best laser performance and imPortant applications at Present.We have succeeded in develoPing this crystal and realizing its laser operation.For raising the concentration and the stability of(F_(2)^(+))center,we have studied its route of formation,state,and control of conditions,with fairly good results as follows:The doping of OH facilitates the formation of high-order aggregated center in crystal during co-loration.展开更多
Tunable color center lasers making use of electron trapping defects such as F A and F + 2 like centers in alkali halide crystals can deliver broadly tunable power over the near infrared 0.8—4.0μm range.The tunable r...Tunable color center lasers making use of electron trapping defects such as F A and F + 2 like centers in alkali halide crystals can deliver broadly tunable power over the near infrared 0.8—4.0μm range.The tunable range and their impressive feature of narrow linewidth make these solid state lasers important to molecular spectroscopy,pollution detection,fiber optics communication and other scientific research fields.The( F + 2) H center consisting of an F + 2 center and an neibouring O 2- ion,is one of the most important color centers.In this paper,we will study the preparation,absorption and emission spectra of the ( F + 2) H center in mixed crystal KCl KBr∶OH -. Single crystals of KCl,KBr and different compositions of KCl x Br 1-x solid solutions are growtn with 0.1mol%—0.3mol% KOH in the melt by the Czochralski technique in air.展开更多
文摘YCOB,a member of the new crystal family of ReCOB (ReCOB=ReCa 4O(BO 3) 3,Re=La 3+ ,Nd 3+ ,Sm 3+ ,Gd 3+ ,Er 3+ ,Y 3+ ),has received mo re and more attentions in recent few years,because of its excellent nonlinear op tical (N LO) properties and a great promise as a laser host material.Unfortunately,liking most of nonlinear optical crystals,the laser induced damages were also created in the new crystal family when irradiated by ultraviolet laser.In this report we present our preliminary results of the investigation on the radiation induced damage in YCOB crystals.
文摘NaCl(OH^(-)):(F_(2)^(+))is a color center laser crystaJ with best laser performance and imPortant applications at Present.We have succeeded in develoPing this crystal and realizing its laser operation.For raising the concentration and the stability of(F_(2)^(+))center,we have studied its route of formation,state,and control of conditions,with fairly good results as follows:The doping of OH facilitates the formation of high-order aggregated center in crystal during co-loration.
文摘Tunable color center lasers making use of electron trapping defects such as F A and F + 2 like centers in alkali halide crystals can deliver broadly tunable power over the near infrared 0.8—4.0μm range.The tunable range and their impressive feature of narrow linewidth make these solid state lasers important to molecular spectroscopy,pollution detection,fiber optics communication and other scientific research fields.The( F + 2) H center consisting of an F + 2 center and an neibouring O 2- ion,is one of the most important color centers.In this paper,we will study the preparation,absorption and emission spectra of the ( F + 2) H center in mixed crystal KCl KBr∶OH -. Single crystals of KCl,KBr and different compositions of KCl x Br 1-x solid solutions are growtn with 0.1mol%—0.3mol% KOH in the melt by the Czochralski technique in air.
