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公开(公告)号：US10352856B2
公开(公告)日：2019-07-16
申请号：US15378782
申请日：2016-12-14
Applicant: Massachusetts Institute of Technology
Inventor： Nicholas Rivera , Ido Kaminer , Bo Zhen , Marin Soljacic , John Joannopoulos
Abstract: 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.
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2.发明申请公开(公告)号：US20250137942A1
公开(公告)日：2025-05-01
申请号：US18701792
申请日：2022-08-16
Applicant: Massachusetts Institute of Technology
Inventor： Marin Soljacic , Charles Roques-Carmes , Nicholas Rivera , Zin Lin , William Li
Abstract: Several new techniques for designing nanophotonic scintillators which lead to optimal performance and novel functionalities. Important design concepts include the use of absorbing structures inspired by solar cells, angularly-selective structures, and metasurfaces. Scintillators based on conventionally overlooked materials (such as GaAs or GaN) are also disclosed, which are designed to reach efficiencies comparable or superior to state-of-the-art conventional scintillators (such as YAG:Ce and LYSO). Such scintillators provide important enhancement of scintillation yield arising from incorporation of nanophotonic patterns. Additionally, nanophotonic scintillators designed in conjunction with image post processing algorithms (such as deconvolution algorithms, tomographic reconstruction, etc.) are disclosed. These scintillators are designed in order to increase robustness, minimize the required dose/scan time or even the number of scans required in scintillation imaging. These new designs optimize the scintillator for optimal reconstruction.
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3.发明公开公开(公告)号：US20240210576A1
公开(公告)日：2024-06-27
申请号：US18286808
申请日：2022-04-12
Inventor： John Joannopoulos , Steven Johnson , Marin Soljacic , Steven Kooi , Justin Beroz , Ido Kaminer , Nicholas Rivera , Yi Yang , Charles Roques-Carmes , Ali Ghorashi , Zin Lin , Nicolas Romeo
IPC: G01T1/20 , G01N23/04 , G01N23/083 , G01N23/2251
CPC classification number: G01T1/2018 , G01N23/04 , G01N23/083 , G01N23/2251
Abstract: Methods and systems are disclosed that enhance the yield and speed of emission and control the spectral and angular emission of light emitted by materials under irradiation by high-energy particles through a process known as scintillation. In each case, a photonic structure (of nano- or micron-scale feature sizes) is integrated with a scintillating material, and the photonic structure enhances the yield or controls the spectrum of the material. Various embodiments of this technology and practical demonstrations are disclosed.
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4.发明公开公开(公告)号：US20240195140A1
公开(公告)日：2024-06-13
申请号：US18286790
申请日：2022-04-12
Applicant: Massachusetts Institute of Technology
Inventor： Marin Soljacic , Nicholas Rivera , Jamison Sloan , Yannick Salamin
CPC classification number: H01S3/109 , G02F1/354 , H01S3/1611 , H01S3/1643 , B82Y20/00
Abstract: A principle which enables the generation of macroscopic Fock and sub-Poissonian states is disclosed. Generic components of the system include: an electromagnetic structure (possessing one or more electromagnetic resonances), a nonlinear electromagnetic element (such as a nonlinear crystal near or inside the structure), and a source of light. In one embodiment, stimulated gain is used to create large numbers of photons in a cavity, but with very low photon number noise (uncertainty) in the cavity, and thus acts as a Fock laser. This Fock laser is capable of producing these states due to a very sharp intensity-dependent gain (or loss) that selects a particular photon number. The disclosed system and method are robust against both atomic and optical decoherence. Various examples of the new Fock laser design are also described.
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