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公开(公告)号：US20180248103A1
公开(公告)日：2018-08-30
申请号：US15907793
申请日：2018-02-28
CPC分类号： H01L39/10 , G01J1/42 , G01J1/44 , G01J5/023 , G01J5/024 , G01J5/046 , G01J5/10 , G01J2001/442 , G01J2001/4446 , H01L39/12 , H01L39/225 , H01L39/24
摘要： A superconducting medium includes a first layer made of a first superconductor and a second layer made of a second superconductor. The first layer has a first thickness less than a first coherence length of the first superconductor. The second layer has a second thickness less than a second coherence length of the second superconductor so as to induce a proximity effect between the first layer and the second layer. The proximity effect can induce desirable properties in the resulting superconducting medium. Controlling the thickness ratio of the first layer to the second layer can also tune the property of the superconducting medium.
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公开(公告)号：US20180287329A1
公开(公告)日：2018-10-04
申请号：US15944360
申请日：2018-04-03
发明人： Yi YANG , Aviram MASSUDA , Charles ROQUES-CARMES , Nicholas H. RIVERA , Tena DUBCEK , John D. JOANNOPOULOS , Karl Kimon BERGGREN , Ido E. KAMINER , Marin SOLJACIC , Yujia YANG , Steven E. KOOI , Phillip Donald Keathley
摘要： An apparatus for generating Smith-Purcell radiation having at least one spectral component at a wavelength A includes a periodic structure including a dielectric material and an electron source, in electromagnetic communication with the periodic structure, to emit an electron beam propagating within about 5λ from a surface of the periodic structure to induce emission of the Smith-Purcell radiation. The electron beam has an electron energy tunable between about 0.5 keV and about 40 keV so as to change a wavelength of the Smith-Purcell radiation.
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