| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a laser apparatus, along with a microscope, of high power which uses an excitation light source of visible band. <P>SOLUTION: A laser apparatus 10 includes an excitation optical system consisting of a GaN semiconductor laser 1 and a condenser lens 2, and a resonator consisting of a dichroic mirror 3 and an output mirror 5. A solid laser medium 4 is arranged in the resonator. The solid laser medium 4 is arranged in the resonator so that c-axis of crystal is parallel to an x-axis. The excitation optical system is so arranged that the polarizing direction of excitation light emitted from the GaN semiconductor laser 1 is parallel to a y-axis. The excitation light is absorbed in a crystal axis vertical to the c-axis where absorption of the excitation light whose wavelength is 445 nm is maximum. The polarizing direction of the oscillation light emitted from the solid laser medium 4 is parallel to the c-axis direction where fluorescence intensity is the highest, being parallel to the x-axis which is orthogonal to the excitation light. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
