When the electrostatic forces are applied, the deformation and the focal length change differently between the two types of focusing mirror. For circular clamped micro mirror, the deformation is larger near circular clamped region and uniform in the center regime. Therefore, the relation of focal ...
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It has a negative focal length and are used to diverge a beam of parallel light. Diameter2-250mm Radius5mm Centration<3min, <1min or <30'' Clear Aperture>90% Surface roungh60/40, 40/20 or better Surface flatnesslambda/4, lambda/2 or as re...
And the focal length can be obtained. The results show deformation increases nonlinearly as applying voltages increasing. The stresses increase linearly when thickness also increase but nonlinearly when radius of mirror increases. The maximum stress happens in the region of bounded. The focal length ...
It has a negative focal length and are used to diverge a beam of parallel light. Diameter2-250mm Radius5mm Centration<3min, <1min or <30'' Clear Aperture>90% Surface roungh60/40, 40/20 or better Surface flatnesslambda/4, lambda/2 or ...
For the laser cavity in our experiments, the thermal lenses are distributed in the gain medium, which also serves as the end mirror of the hemispherical laser cavity. It is known that when the thermal lens focal length of the gain medium (i.e., the focal length when the thermal lens dis...