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1. 发明申请

WO2007121082A2 SOLAR CELL EFFICIENCIES THROUGH PERIODICITY 审中-公开
标题翻译：通过周期性实现太阳能电池效率
公开(公告)号：WO2007121082A2
公开(公告)日：2007-10-25
申请号：PCT/US2007/065830
申请日：2007-04-03
申请人： MASSACHUSETTS INSTITUTE OF TECHNOLOGY , BERMEL, Peter , JOANNOPOULOS, John D. , LUO, Chiyan
发明人： BERMEL, Peter , JOANNOPOULOS, John D. , LUO, Chiyan
IPC分类号： H01L31/0232 , H01L31/0216
CPC分类号： H01L31/0232 , B82Y20/00 , G02B1/005 , H01L31/02168 , H01L31/056 , Y02E10/52
摘要： A solar cell includes a photovoltaic material region. The photovoltaic material region is covered by a uniform anti-reflection coating. A photonic crystal structure is positioned on the photovoltaic material region. The photonic crystal structure provides a medium to produce a plurality of spatial orientations of an incident light signal received by the solar cell so as to allow trapping of a selective frequency of incident light in the solar cell.
摘要翻译：太阳能电池包括光伏材料区域。光伏材料区域被均匀的防反射涂层覆盖。光子晶体结构位于光伏材料区域上。光子晶体结构提供介质以产生由太阳能电池接收的入射光信号的多个空间取向，以允许捕获太阳能电池中入射光的选择性频率。

2. 发明申请

WO2017151207A3 APPARATUS AND METHODS FOR SPECTROSCOPY AND BROADBAND LIGHT EMISSION USING TWO-DIMENSIONAL PLASMON FIELDS 审中-公开
公开(公告)号：WO2017151207A3
公开(公告)日：2017-09-08
申请号：PCT/US2016/066530
申请日：2016-12-14
申请人： MASSACHUSETTS INSTITUTE OF TECHNOLOGY , RIVERA, Nicholas H. , KAMINER, Ido E. , ZHEN, Bo , SOLJACIC, Marin , JOANNOPOULOS, John D.
发明人： RIVERA, Nicholas H. , KAMINER, Ido E. , ZHEN, Bo , SOLJACIC, Marin , JOANNOPOULOS, John D.
IPC分类号： B82Y15/00 , B82Y35/00 , G01N21/65
摘要： Ultra-thin conductors are employed to generate plasmon fields near the surface of the conductors. Emitters, such as atoms, molecules, quantum dots, or quantum wells, in the plasmon fields can emit and absorb light via transitions that are otherwise forbidden in the absence of the plasmon fields. Applications using these forbidden transitions include spectroscopy, organic light sources, and broadband light generation. For example, in a spectroscopic platform, an emitter is disposed in the plasmon fields to excite electronic transitions that are otherwise unexcitable. In organic light sources, plasmon fields quench excited triplet states, allowing fast singlet decay with the emission of light. In broadband light generation, strong two-plasmon spontaneous emission of emitters near ultrathin conductors is employed to produce a broad spectrum of light.

3. 发明申请

WO2012047344A2 MULTIMATERIAL THERMALLY DRAWN PIEZOELECTRIC FIBERS 审中-公开
标题翻译：多材料热拉制压电纤维
公开(公告)号：WO2012047344A2
公开(公告)日：2012-04-12
申请号：PCT/US2011/043175
申请日：2011-07-07
申请人： MASSACHUSETTS INSTITUTE OF TECHNOLOGY , FINK, Yoel , WANG, Zheng , EGUSA, Shunji , CHOCAT, Noemie , JOANNOPOULOS, John D.
发明人： FINK, Yoel , WANG, Zheng , EGUSA, Shunji , CHOCAT, Noemie , JOANNOPOULOS, John D.
IPC分类号： H01B3/48
CPC分类号： B32B1/08 , A61M5/14 , B29D99/0078 , B82Y30/00 , H01B1/22 , H01B1/24 , H01B3/30 , H01L41/082 , H01L41/193 , H01L41/45 , H04R17/00 , H04R17/10 , H04R2217/03 , Y10T428/2935 , Y10T428/2944 , Y10T428/2964 , Y10T428/2967
摘要： Disclosed are fibers that include a composite of at least three different materials, where the at least three different materials include a conductor, an insulator, and a non-centrosymmetric material, and where each material is disposed in one or more different cross-sectional regions of the fiber, with each region extending along a common length of the fiber.
摘要翻译：公开了包括至少三种不同材料的复合材料的纤维，其中所述至少三种不同材料包括导体，绝缘体和非中心对称材料，并且其中每种材料设置在纤维的一个或多个不同的横截面区域，每个区域沿纤维的共同长度延伸。

4. 发明申请

WO2010039967A1 EFFICIENT NEAR-FIELD WIRELESS ENERGY TRANSFER USING ADIABATIC SYSTEM VARIATIONS 审中-公开
标题翻译：使用ADIABATIC系统变化的有效的近地无线电能量传输
公开(公告)号：WO2010039967A1
公开(公告)日：2010-04-08
申请号：PCT/US2009/059244
申请日：2009-10-01
申请人： MASSACHUSETTS INSTITUTE OF TECHNOLOGY , HAMAM, Rafif E. , KARALIS, Aristeidis , JOANNOPOULOS, John D. , SOLJACIC, Marin
发明人： HAMAM, Rafif E. , KARALIS, Aristeidis , JOANNOPOULOS, John D. , SOLJACIC, Marin
IPC分类号： H01P7/00
CPC分类号： H02J5/005 , H02J7/025 , H02J17/00 , H02J50/12 , H04B5/0037
摘要： Disclosed is a method for transferring energy wirelessly including transferring energy wirelessly from a first resonator structure to an intermediate resonator structure, wherein the coupling rate between the first resonator structure and the intermediate resonator structure is ĸ 1 B , transferring energy wirelessly from the intermediate resonator structure to a second resonator structure, wherein the coupling rate between the intermediate resonator structure and the second resonator structure is ĸ B 2 and during the wireless energy transfers, adjusting at least one of the coupling rates ĸ 1 B and ĸ B 2 to reduce energy accumulation in the intermediate resonator structure and improve wireless energy transfer from the first resonator structure to the second resonator structure through the intermediate resonator structure.
摘要翻译：公开了一种无线传输能量的方法，包括从第一谐振器结构无线传输能量到中间谐振器结构，其中第一谐振器结构和中间谐振器结构之间的耦合速率为λB，从中间谐振器结构无线传送能量到第二谐振器结构，其中中间谐振器结构和第二谐振器结构之间的耦合速率为 B 2，并且在无线能量传送期间，调整耦合速率α1B和β2中的至少一个 B 2以减少中间谐振器结构中的能量累积，并且通过中间谐振器结构改善从第一谐振器结构到第二谐振器结构的无线能量传递。

5. 发明申请

WO2017151207A2 APPARATUS AND METHODS FOR SPECTROSCOPY AND BROADBAND LIGHT EMISSION USING TWO-DIMENSIONAL PLASMON FIELDS 审中-公开
标题翻译：使用二维等离子体场的光谱和宽带光发射装置和方法
公开(公告)号：WO2017151207A2
公开(公告)日：2017-09-08
申请号：PCT/US2016/066530
申请日：2016-12-14
申请人： MASSACHUSETTS INSTITUTE OF TECHNOLOGY , RIVERA, Nicholas H. , KAMINER, Ido E. , ZHEN, Bo , SOLJACIC, Marin , JOANNOPOULOS, John D.
发明人： RIVERA, Nicholas H. , KAMINER, Ido E. , ZHEN, Bo , SOLJACIC, Marin , JOANNOPOULOS, John D.
IPC分类号： G01N21/64
CPC分类号： G01N21/64 , G01N21/636 , G01N2021/1725
摘要： Ultra-thin conductors are employed to generate plasmon fields near the surface of the conductors. Emitters, such as atoms, molecules, quantum dots, or quantum wells, in the plasmon fields can emit and absorb light via transitions that are otherwise forbidden in the absence of the plasmon fields. Applications using these forbidden transitions include spectroscopy, organic light sources, and broadband light generation. For example, in a spectroscopic platform, an emitter is disposed in the plasmon fields to excite electronic transitions that are otherwise unexcitable. In organic light sources, plasmon fields quench excited triplet states, allowing fast singlet decay with the emission of light. In broadband light generation, strong two-plasmon spontaneous emission of emitters near ultrathin conductors is employed to produce a broad spectrum of light.
摘要翻译：采用超薄导体在导体表面附近产生等离子体激元场。等离子体激元场中的发射体（如原子，分子，量子点或量子阱）可以通过不存在等离子体激元场的情况下禁止的跃迁发射和吸收光。使用这些禁止转换的应用包括光谱学，有机光源和宽带光生成。例如，在光谱平台中，发射体设置在等离子体激元场中以激发否则不可用的电子跃迁。在有机光源中，等离子体激元场猝灭激发三重态，允许发射光时快速单重态衰减。在宽带光产生中，采用超薄导体附近的强等离子体发射自发发射来产生广谱光。

6. 发明申请

WO2019005254A3 APPARATUS AND METHODS FOR GENERATING AND ENHANCING SMITH-PURCELL RADIATION 审中-公开
公开(公告)号：WO2019005254A3
公开(公告)日：2019-01-03
申请号：PCT/US2018/025898
申请日：2018-04-03
申请人： MASSACHUSETTS INSTITUTE OF TECHNOLOGY , KEATHLEY, Phillip Donald
发明人： KEATHLEY, Phillip Donald , YANG, Yi , MASSUDA, Aviram , ROQUES-CARMES, Charles , RIVERA, Nicholas H. , DUBCEK, Tena , JOANNOPOULOS, John D. , BERGGREN, Karl Kimon , KAMINER, Ido E. , SOLJACIC, Marin , YANG, Yujia , KOOI, Steven E.
IPC分类号： H01S3/09 , H01S3/0959
摘要： An apparatus for generating Smith-Purcell radiation having at least one spectral component at a wavelength λ 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.

7. 发明申请

WO2017223305A1 HIGHLY EFFICIENT NEAR-FIELD THERMOPHOTOVOLTAICS USING SURFACE-POLARITON EMITTERS AND THIN-FILM PHOTOVOLTAIC-CELL ABSORBERS 审中-公开
标题翻译：使用表面 - 极性发射体和薄膜光伏细胞吸收剂的高效近场热光电转换
公开(公告)号：WO2017223305A1
公开(公告)日：2017-12-28
申请号：PCT/US2017/038733
申请日：2017-06-22
申请人： MASSACHUSETTS INSTITUTE OF TECHNOLOGY
发明人： KARALIS, Aristeidis , JOANNOPOULOS, John D.
IPC分类号： H02S10/30 , H02S40/40
CPC分类号： H02S10/30 , H01L31/022425 , H01L31/04 , H02S40/40
摘要： A near-field ThermoPhotoVoltaic system comprises a hot emitter and a cold absorbing PhotoVoltaic cell separated by a small gap. The emitter emits hot photons and includes a polaritonic material that supports a surface-polaritonic mode. The PhotoVoltaic cell has a metallic back electrode and includes a semiconductor that absorbs the photons and supports guided photonic modes. The surface-polaritonic mode and the first guided photonic mode resonantly couple at a frequency slightly above the semiconductor bandgap. The system material and geometrical parameters are such that the surface-polaritonic mode and the first guided photonic mode are approximately impedance-matched, so that power is transmitted at frequencies just above the semiconductor bandgap, even for relatively large gap widths, while the power transmitted at other frequencies is relatively small, leading to high system efficiency. Also described the PhotoVoltaic cell's front electrode, which may include highly-doped semiconductor regions, thin conducting oxide or silver films, or graphene layers.
摘要翻译：近场ThermoPhotoVoltaic系统包括由小间隙分开的热发射器和冷吸收光伏电池。发射器发射热光子并且包括支持表面极化光子模式的极化材料。光伏电池具有金属背电极并且包括吸收光子并支持引导光子模式的半导体。表面极化模式和第一导向光子模式以略高于半导体带隙的频率共振耦合。系统材料和几何参数使得表面极化波模式和第一导向光子模式近似为阻抗匹配，使得即使对于相对大的间隙宽度，功率也以恰好高于半导体带隙的频率传输，而传输的功率在其他频率上相对较小，导致系统效率较高。还描述了光伏电池的正面电极，其可以包括高度掺杂的半导体区域，薄导电氧化物或银膜或石墨烯层。

8. 发明申请

WO2019005254A2 APPARATUS AND METHODS FOR GENERATING AND ENHANCING SMITH-PURCELL RADIATION 审中-公开
公开(公告)号：WO2019005254A2
公开(公告)日：2019-01-03
申请号：PCT/US2018/025898
申请日：2018-04-03
申请人： MASSACHUSETTS INSTITUTE OF TECHNOLOGY , KEATHLEY, Phillip Donald
发明人： KEATHLEY, Phillip Donald , YANG, Yi , MASSUDA, Aviram , ROQUES-CARMES, Charles , RIVERA, Nicholas H. , DUBCEK, Tena , JOANNOPOULOS, John D. , BERGGREN, Karl Kimon , KAMINER, Ido E. , SOLJACIC, Marin , YANG, Yujia , KOOI, Steven E.
IPC分类号： H01S3/09 , H01S3/101
摘要： An apparatus for generating Smith-Purcell radiation having at least one spectral component at a wavelength λ 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.

9. 发明申请

WO2015178982A3 METHODS AND APPARATUS FOR BROADBAND ANGULAR SELECTIVITY OF ELECTROMAGNETIC WAVES 审中-公开
公开(公告)号：WO2015178982A3
公开(公告)日：2015-11-26
申请号：PCT/US2015/017303
申请日：2015-02-24
申请人： MASSACHUSETTS INSTITUTE OF TECHNOLOGY
发明人： SHEN, Yichen , YE, Dexin , CELANOVIC, Ivan , JOHNSON, Steven G. , JOANNOPOULOS, John D. , SOLJACIC, Marin
IPC分类号： G02B5/20
摘要： A filter to transmit incident radiation at a predetermined incidence angle includes a plurality of photonic crystal structures disposed substantially along a surface normal direction of the filter. The photonic crystal structure includes a multilayer cell that comprises a first layer having a first dielectric permittivity, and a second layer having a second dielectric permittivity different from the first dielectric permittivity. The first layer and the second layer define a Brewster angle substantially equal to the predetermined incidence angle based on the first dielectric permittivity and the second permittivity. Each photonic crystal structure in the plurality of photonic crystal structures defines a respective bandgap, and the respective bandgaps of the plurality of photonic crystal structures, taken together, cover a continuous spectral region of about 50 nm to about 100 mm.

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