Using an intense visible laser pulse to excite the liquid-filled waveguide with a long gain length,we have observed a new stimulated-scattering with super-broadened spectral width(500cm^(-1))in addition to the sharp l...Using an intense visible laser pulse to excite the liquid-filled waveguide with a long gain length,we have observed a new stimulated-scattering with super-broadened spectral width(500cm^(-1))in addition to the sharp lines of SRS of the benzene or carbon-disulfide which is used as a filling liquid.展开更多
In recent years,from the laser experimental study of neodymium doped potassium g adolinium tungstate,i.e.KGd(WO 4) 2 (KGW),laser scientific workers had discove r ed that it has many advantages,as compared to YAG and o...In recent years,from the laser experimental study of neodymium doped potassium g adolinium tungstate,i.e.KGd(WO 4) 2 (KGW),laser scientific workers had discove r ed that it has many advantages,as compared to YAG and other tungstate crystals u n der indentical experimental conditions,such as low lasing threshold,high output energy o r power and high efficiency et al.Especially,as seen on the absorption spectra o f Nd:YAG and Nd:KGW reported by V.Kushawaha et al,a strong and broad absorption line around 808nm is much wider (～12nmFWHM) in Nd:KGW as compared to the Nd:YAG (～1.5nm FWHM),and this wavelength is just during the main peak area emitted by diode laser,so that Nd:KGW may be a excellent candidate for efficient diode pum ping at 808nm.Therefore the research and development of KGW crystals and laser d evices has been bestowed great attention in interational laser science area.For the laser rod with dimensions of 5mm×8mm and 6.3mm×75mm,the xenon flashlamp pumping KGW laser have achieved more laser output and higher efficie n ies than the YAG crystals under identical experimental conditions,by V.Kushawaha et al.In Unite State and K.A.Stankov et al.in Germang respectively.展开更多
文摘Using an intense visible laser pulse to excite the liquid-filled waveguide with a long gain length,we have observed a new stimulated-scattering with super-broadened spectral width(500cm^(-1))in addition to the sharp lines of SRS of the benzene or carbon-disulfide which is used as a filling liquid.
文摘In recent years,from the laser experimental study of neodymium doped potassium g adolinium tungstate,i.e.KGd(WO 4) 2 (KGW),laser scientific workers had discove r ed that it has many advantages,as compared to YAG and other tungstate crystals u n der indentical experimental conditions,such as low lasing threshold,high output energy o r power and high efficiency et al.Especially,as seen on the absorption spectra o f Nd:YAG and Nd:KGW reported by V.Kushawaha et al,a strong and broad absorption line around 808nm is much wider (～12nmFWHM) in Nd:KGW as compared to the Nd:YAG (～1.5nm FWHM),and this wavelength is just during the main peak area emitted by diode laser,so that Nd:KGW may be a excellent candidate for efficient diode pum ping at 808nm.Therefore the research and development of KGW crystals and laser d evices has been bestowed great attention in interational laser science area.For the laser rod with dimensions of 5mm×8mm and 6.3mm×75mm,the xenon flashlamp pumping KGW laser have achieved more laser output and higher efficie n ies than the YAG crystals under identical experimental conditions,by V.Kushawaha et al.In Unite State and K.A.Stankov et al.in Germang respectively.
