PHOTON ENERGY CONVERTER
    32.
    发明专利

    公开(公告)号:AU8575775A

    公开(公告)日:1977-04-21

    申请号:AU8575775

    申请日:1975-10-15

    Applicant: IBM

    Abstract: An efficient converter of photon energy to heat has been devised comprising a dense array of metal whiskers grown with spacings between the whiskers of a few wavelengths of visible light. The material selected, and tungsten is exemplary of such materials, has low emissivity, but achieves significant optical absorption by trapping the light impinging on the dense array by a geometric maze effect. The characteristics of the surface are excellent for the conversion of solar energy to heat.

    39.
    发明专利
    未知

    公开(公告)号:DE3673749D1

    公开(公告)日:1990-10-04

    申请号:DE3673749

    申请日:1986-09-19

    Applicant: IBM

    Abstract: Plasma enhancement is achieved in a plasma glow system (1) by increasing the number of photoelectric electrons (15) in the plasma glow (11) by producing photoelectrons from the surface of a target (3) in the system by the use of a radiation source (8). This is more particularly accomplished by flooding the surface of the target with a UV laser beam during the plasma process where emitted photoelectrons are injected into the plasma to increase the plasma density.The plasma enhancement is used in a sputter etching/deposition system which includes a chamber containing a cathode (2), a target, a substrate platform (5) containing substrate and a pump. An ultraviolet light source such as a UV laser and focussing optics (9) for focussing the UV radiation onto the target through a UV transmissive window (10) are also provided. A plasma region in the chamber is enhanced by photons from the laser striking the target and producing photoelectrons which are injected into the plasma to increase its density.

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