Patent application number | Description | Published |
20090141758 | SEMICONDUCTOR LASER EQUIPMENT - The present invention relates to a semiconductor laser apparatus having a structure for preventing the corrosion of a refrigerant flow path in a heat sink and for cooling a semiconductor laser array stably over a long period of time. The semiconductor laser apparatus comprises a semiconductor laser stack in which a plurality of semiconductor laser units are stacked, a refrigerant supplier, a piping for connecting these components, and a refrigerant flowing through these components. The refrigerant supplier supplies the refrigerant to the semiconductor laser stack. The refrigerant is comprised of fluorocarbon. Each of the semiconductor laser units is constituted by a pair of a semiconductor laser array and a heat sink. The heat sink has a refrigerant flow path. | 06-04-2009 |
20090273281 | PHOTOCATHODE AND ELECTRON TUBE HAVING THE SAME - The photocathode of the present invention is provided with a supporting substrate composed of a single-crystal compound semiconductor, a light absorbing layer which is formed on the supporting substrate and smaller in an energy band gap than the supporting substrate to absorb incident light transmitted through the supporting substrate, thereby generating photoelectrons, and a surface layer which is formed on the light absorbing layer to lower a work function of the light absorbing layer, in which the supporting substrate comprises Al | 11-05-2009 |
20110096385 | PLASMA SHUTTER FORMING APPARATUS AND FORMING METHOD - A plasma shutter forming apparatus for forming a plasma shutter used in a system configured to generate and accelerate radiations by irradiating a target with a laser pulse and generating a high-density plasma for blocking the laser pulse which is returned as a feedback light to upstream of the system without being absorbed by the high-density plasma, including a plasma shutter generating target, and a plasma shutter triggering laser irradiator, wherein the laser pulse from the plasma shutter triggering laser irradiator is directed to the plasma shutter generating target to generate the high-density plasma and form the plasma shutter, thereby blocking the laser pulse which is returned as the feedback light. Optics are prevented from becoming damaged by feedback light reflecting when generating the high-density plasma in a laser-driven radiation generating system and returning back to the upstream of the laser system. | 04-28-2011 |
20110206083 | SEMICONDUCTOR LASER APPARATUS - This invention relates to semiconductor laser apparatus with a structure for reducing the divergence angle of output light and for narrowing the spectral width. The semiconductor laser apparatus has at least a semiconductor laser array, a collimator lens, a path rotator, and an optical element with a reflecting function. The collimator lens collimates a plurality of laser beams from the semiconductor laser array, in a predetermined direction. The path rotator outputs each beam collimated in the predetermined direction, with a predetermined divergence angle in the predetermined direction in a state in which a transverse section of the beam is rotated by about 90°. The optical element is arranged at a position where at least a part of each beam from the path rotator arrives, and constitutes at least a part of an external resonator. This optical element reflects a part of each beam from the path rotator to return the reflected part of each beam to the active layer in the semiconductor laser array. | 08-25-2011 |
20110220956 | SILICON LIGHT-EMITTING ELEMENT - A silicon light-emitting element includes a first conductivity type silicon substrate | 09-15-2011 |
20120155590 | METHOD OF DETERMINING NUCLEAR FUSION IRRADIATION COORDINATES, DEVICE FOR DETERMINING NUCLEAR FUSION IRRADIATION COORDINATES, AND NUCLEAR FUSION DEVICE - An object of the present invention is to efficiently improve uniformity of energy lines to be irradiated. A method of determining nuclear fusion irradiation coordinates according to the present invention is a method of calculating irradiation coordinates when energy lines are irradiated onto a nuclear fusion target, and comprises an initial arrangement step S | 06-21-2012 |
20120307950 | NUCLEAR FUSION TARGET, NUCLEAR FUSION DEVICE, AND NUCLEAR FUSION METHOD - An object is to be capable of inducing a nuclear fusion reaction at a relatively high efficiency and downsize a device. A nuclear fusion device | 12-06-2012 |
20130279530 | SEMICONDUCTOR LASER DEVICE - A semiconductor laser bar | 10-24-2013 |
20140030671 | DENTAL THERAPY APPARATUS - A dental therapy apparatus which enables a dental therapy more surely and less invasively is provided. A dental therapy apparatus ( | 01-30-2014 |