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公开(公告)号：US20240402568A1
公开(公告)日：2024-12-05
申请号：US18317533
申请日：2023-05-15
Applicant: California Institute of Technology
Inventor： Robert M. Gray , Selina Zhou , Mingchen Liu , Arkadev Roy , Alireza Marandi
Abstract: A sensor including a resonator comprising a nonlinear material comprising a nonlinear susceptibility configured to convert a pump electromagnetic wave (EM) wave to a signal EM wave and an idler EM wave, wherein at least one of the pump EM wave, the signal EM wave and/or the idler EM wave is fed back through the nonlinear material to form one or more resonant EM waves. An actuator coupled to the resonator or a pump path to the resonator, controls at least one of a pump power of the pump EM wave, a detuning of the frequency modes of the resonator relative to one or more frequencies of the resonant EM waves, or a phase matching of the nonlinear material. An output of the resonator outputs one or more output EM waves comprising information about a sample coupled to the resonator.
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公开(公告)号：US11841271B2
公开(公告)日：2023-12-12
申请号：US17533926
申请日：2021-11-23
Applicant: California Institute of Technology
Inventor： Alireza Marandi , Mingchen Liu , Arkadev Roy
CPC classification number: G01J3/4338 , G01J3/027 , G01J3/0275 , G01J2003/4332
Abstract: A system for performing spectroscopy, including a first frequency comb source outputting first electromagnetic radiation comprising a first frequency comb centered at a first wavelength and having a first repetition rate; a second frequency comb source outputting a second electromagnetic radiation comprising a second frequency comb centered at a second wavelength and having a second repetition rate; a nonlinear device positioned to receive the first frequency comb and the second frequency comb, wherein the nonlinear device interacts the first frequency comb and the second frequency comb through sum frequency generation or difference frequency generation so as to generate an output electromagnetic radiation; and a detection system outputting a signal in response to detecting an interference of the output electromagnetic radiation with a third electromagnetic radiation, the signal comprising information used for determining a spectrum of at least the first frequency comb or the second frequency comb.
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公开(公告)号：US20220163389A1
公开(公告)日：2022-05-26
申请号：US17533926
申请日：2021-11-23
Applicant: California Institute of Technology
Inventor： Alireza Marandi , Mingchen Liu , Arkadev Roy
Abstract: A system for performing spectroscopy, including a first frequency comb source outputting first electromagnetic radiation comprising a first frequency comb centered at a first wavelength and having a first repetition rate; a second frequency comb source outputting a second electromagnetic radiation comprising a second frequency comb centered at a second wavelength and having a second repetition rate; a nonlinear device positioned to receive the first frequency comb and the second frequency comb, wherein the nonlinear device interacts the first frequency comb and the second frequency comb through sum frequency generation or difference frequency generation so as to generate an output electromagnetic radiation; and a detection system outputting a signal in response to detecting an interference of the output electromagnetic radiation with a third electromagnetic radiation, the signal comprising information used for determining a spectrum of at least the first frequency comb or the second frequency comb.
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