公开(公告)号：US20230100053A1

公开(公告)日：2023-03-30

申请号：US17940970

申请日：2022-09-08

Applicant: Purdue Research Foundation

Inventor： Joseph V Sinfield ,  Yu-Chung Lin

IPC: G01J3/44 ,  G01J3/02 ,  G01N21/65

Abstract: A Raman spectroscopy system, including an optical excitation source, an objective lens, a mirror for redirecting optical excitation to the objective lens, an optical switch, an excitation beam optical fiber operationally connected to the objective lens and to the optical switch, a plurality of Raman probes, a plurality of probe optical fibers, each respective probe optical fiber operationally connected to the optical switch and a respective Raman probe, and a spectrometer. Each respective Raman probe is operationally connected to the spectrometer.

公开(公告)号：US12123777B2

公开(公告)日：2024-10-22

申请号：US17730374

申请日：2022-04-27

Applicant: Purdue Research Foundation

Inventor： Joseph Sinfield ,  Yu-Chung Lin

IPC: G01J3/44 ,  G01N21/65 ,  G01J1/44

CPC classification number: G01J3/4412 ,  G01J3/44 ,  G01N21/65 ,  G01J2001/442

Abstract: A method of determining the contributions of multiple incident photons to an output of a sensor, including providing a photonic sensor having a sensor input and capable of generating an electrical signal proportional to a number of photons interacting with the photonic sensor input as a function of time, calibrating the photonic sensor such that a response of the photonic sensor to a single photon detected is in a waveform having an amplitude and a time, wherein the product of the amplitude and the time is statistically bounded, determining a probabilistic boundary between one or more of electrical, optical, and thermal sources of noise of the sensor, acquiring a response wave form from the photonic sensor through analog-to-digital conversion with a resolution in amplitude and time corresponding to accuracy required in quantifying the response wave form, storing each acquired response wave form, individually, in a format selected from the group consisting of real-time and buffered packets in digital form, and determining a total count of likely photon arrivals for a specific time resolved acquisition.

公开(公告)号：US20220341784A1

公开(公告)日：2022-10-27

申请号：US17730374

申请日：2022-04-27

Applicant: Purdue Research Foundation

Inventor： Joseph Sinfield ,  Yu-Chung Lin

IPC: G01J3/44 ,  G01N21/65 ,  G01N21/47

Abstract: A method of determining the contributions of multiple incident photons to an output of a sensor, including providing a photonic sensor having a sensor input and capable of generating an electrical signal proportional to a number of photons interacting with the photonic sensor input as a function of time, calibrating the photonic sensor such that a response of the photonic sensor to a single photon detected is in a waveform having an amplitude and a time, wherein the product of the amplitude and the time is statistically bounded, determining a probabilistic boundary between one or more of electrical, optical, and thermal sources of noise of the sensor, acquiring a response wave form from the photonic sensor through analog-to-digital conversion with a resolution in amplitude and time corresponding to accuracy required in quantifying the response wave form, storing each acquired response wave form, individually, in a format selected from the group consisting of real-time and buffered packets in digital form, and determining a total count of likely photon arrivals for a specific time resolved acquisition.