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1. (WO2019005254) APPARATUS AND METHODS FOR GENERATING AND ENHANCING SMITH-PURCELL RADIATION
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Pub. No.: WO/2019/005254 International Application No.: PCT/US2018/025898
Publication Date: 03.01.2019 International Filing Date: 03.04.2018
IPC:
H01S 3/09 (2006.01) ,H01S 3/101 (2006.01)
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
S
DEVICES USING STIMULATED EMISSION
3
Lasers, i.e. devices for generation, amplification, modulation, demodulation, or frequency-changing, using stimulated emission, of infra-red, visible, or ultra-violet waves
09
Processes or apparatus for excitation, e.g. pumping
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
S
DEVICES USING STIMULATED EMISSION
3
Lasers, i.e. devices for generation, amplification, modulation, demodulation, or frequency-changing, using stimulated emission, of infra-red, visible, or ultra-violet waves
10
Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
101
Lasers provided with means to change the location from which, or the direction in which, laser radiation is emitted
Applicants:
KEATHLEY, Phillip Donald [US/US]; US
MASSACHUSETTS INSTITUTE OF TECHNOLOGY [US/US]; 77 Massachusetts Ave Cambridge, Massachusetts 02139, US
Inventors:
KEATHLEY, Phillip Donald; US
YANG, Yi; US
MASSUDA, Aviram; US
ROQUES-CARMES, Charles; US
RIVERA, Nicholas H.; US
DUBCEK, Tena; US
JOANNOPOULOS, John D.; US
BERGGREN, Karl Kimon; US
KAMINER, Ido E.; US
SOLJACIC, Marin; US
YANG, Yujia; CN
KOOI, Steven E.; US
Agent:
COLICE, Christopher Max; US
TEJA, Joseph, Jr.; US
Priority Data:
62/480,70903.04.2017US
Title (EN) APPARATUS AND METHODS FOR GENERATING AND ENHANCING SMITH-PURCELL RADIATION
(FR) APPAREIL ET PROCÉDÉS POUR GÉNÉRER ET AMÉLIORER UN RAYONNEMENT DE SMITH-PURCELL
Abstract:
(EN) 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.
(FR) Un appareil selon l'invention pour générer un rayonnement de Smith-Purcell ayant au moins une composante spectrale à une longueur d'onde λ comprend une structure périodique comprenant un matériau diélectrique et une source d'électrons, en communication électromagnétique avec la structure périodique, pour émettre un faisceau d'électrons se propageant à l'intérieur d'environ 5λ à partir d'une surface de la structure périodique pour induire une émission du rayonnement de Smith-Purcell. Le faisceau d'électrons a une énergie d'électrons accordable entre environ 0,5 keV et environ 40 keV de façon à modifier une longueur d'onde du rayonnement de Smith-Purcell.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)