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1. US20210091526 - Room temperature masing using spin-defect centres

Office
United States of America
Application Number 16634225
Application Date 26.07.2018
Publication Number 20210091526
Publication Date 25.03.2021
Grant Number 11108206
Grant Date 31.08.2021
Publication Kind B2
IPC
H01S 1/02
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
1Masers, i.e. devices using stimulated emission of electromagnetic radiation in the microwave range
02solid
CPC
H01S 1/02
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
1Masers, i.e. devices using stimulated emission of electromagnetic radiation in the microwave range
02solid
Applicants IMPERIAL COLLEGE OF SCIENCE, TECHNOLOGY AND MEDICINE
UCL BUSINESS LTD
Inventors Jonathan Breeze
Neil Alford
Juna Sathian
Chris Kay
Enrico Salvadori
Agents Kirschstein, Israel, Schiffmiller & Pieroni, P.C.
Priority Data 1712187 28.07.2017 GB
Title
(EN) Room temperature masing using spin-defect centres
Abstract
(EN)

Masing at room temperature is achieved by an apparatus and method that utilize a microwave cavity which exhibits a resonance of sufficiently high Q-factor for maser oscillation, and a resonator structure comprising a masing medium located within a resonant element. The masing medium comprises spin-defect centres. The resonator structure is disposed within the microwave cavity. A magnetic field is applied across the masing medium. An input of microwave radiation to be amplified is coupled to the resonator structure. An optical pump pumps the masing medium, thereby causing stimulated emission of microwave photons. The microwave cavity has an effective magnetic mode volume matching the volume of the masing medium.


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