| 摘要 |
<p>A solid state laser has a slab of lasing material (5). The slab (5) is elongate having a rectangular cross section with the lower face (5a) of the slab contacting a slab mount (6) which is of a high thermal conductivity material. Energy to drive the lasing medium is provided by a flash lamp (8). Upper and lower faces (5a, 5b) of the slab (5) are polished to an optically smooth finish so that light is able to propagate in a generally axial direction through the slab (5). Side faces (5c, 5d) of the slab (5) are polished and then re-roughened to provide a finish with a surface damage zone comparable in depth to the wavelength of the lasing emission. For a lasing wavelength of 1 νm, the depth of surface damage is in the region of 1 νm.</p> |
