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A stable cw operation in a Nd : phosphate glass laser has been acheived for the first time. An end-pumping scheme with an Ar laser in combination with a new kind of phosphate glass material has been successfully used to reduce thermal problems. More than 10 mW cw output power has been obtained in the TEM00 mode.

Abstract. Our method for synthesizing the mesoporous silica hollow capsules (MSHCs) was combined with the Layer-by-Layer method to integrate the magnetic nanoparticles (mNPs) onto the core template for the MSHC synthesis. The resultant magnetic MSHCs (mMSHCs) were monodisperse as the conventional MSHCs, and the mNPs were embedded on the inner surface of the mesoporous silica shell. The same mesoporous structure as in the MSHCs was confirmed in the mMSHCs and the properties of the mNPs were maintained even after being incorporated into the mMSHCs.

A krypton arc lamp with high conversion efficiency has been obtained by increasing Kr pressure. The conversion efficiency of a lamp at 8 atm is about 1.2-1.5 times as high as that of a lamp used at 2 atm, depending on the operating electrical input. The high pressure Kr arc lamp and Nd: YAG rod were set in a prolate ellipsoidal cavity. Laser power of 73 W was obtained at an input of 2.63 kW for a slope efficiency of 3.5%.