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

IPC: G01N21/64 ,  G01N21/63 ,  G01N21/17

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.

公开(公告)号：US20240210576A1

公开(公告)日：2024-06-27

申请号：US18286808

申请日：2022-04-12

Applicant: Massachusetts Institute of Technology ,  Technion-Israel Institute Of Technology

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.

公开(公告)号：US10785858B2

公开(公告)日：2020-09-22

申请号：US15014401

申请日：2016-02-03

Applicant: Massachusetts Institute of Technology

Inventor： Ido Kaminer ,  Liang Jie Wong ,  Ognjen Ilic ,  Yichen Shen ,  John Joannopoulos ,  Marin Soljacic

IPC: H05G2/00

Abstract: An apparatus includes at least one conductive layer, an electromagnetic (EM) wave source, and an electron source. The conductive layer has a thickness less than 5 nm. The electromagnetic (EM) wave source is in electromagnetic communication with the at least one conductive layer and transmits a first EM wave at a first wavelength in the at least one conductive layer so as to generate a surface plasmon polariton (SPP) field near a surface of the at least one conductive layer. The electron source propagates an electron beam at least partially in the SPP field so as to generate a second EM wave at a second wavelength less than the first wavelength.