公开(公告)号：US20220307904A1

公开(公告)日：2022-09-29

申请号：US17706352

申请日：2022-03-28

Applicant: Nanyang Technological University

Inventor： Quan LIU ,  Yi ZHANG

IPC: G01J3/28 ,  G01J3/02

Abstract: Embodiments are directed to an optical spectrometry method, comprising: generating a sequence of 2D Hadamard masks along the time dimension, wherein each 2D Hadamard mask is arranged with a wavelength dimension and a coefficient dimension; detecting an optical signal from light transmitted through the sequence of 2D Hadamard masks; and reconstructing a spectrum to be detected by analyzing the optical signal, wherein each 2D Hadamard mask in the sequence of 2D Hadamard masks comprises a plurality of columns along the wavelength dimension, each column corresponding to a different Hadamard coefficient, and having different respective sequency values along the time dimension.

公开(公告)号：US20220291130A1

公开(公告)日：2022-09-15

申请号：US17689834

申请日：2022-03-08

Applicant: Nanyang Technological University

Inventor： Quan LIU ,  Clement Yuen

IPC: G01N21/65

Abstract: Embodiments are directed to diagnostic devices based on surface-enhanced Raman scattering comprising: an inlet module receiving liquid to be analyzed; a reaction module having a first region arranged with a receiving hole and a second region arranged with an output hole, wherein the receiving hole is communicated with the output hole through a flow channel configured with at least one chemical set, the reaction module receives the liquid delivered by the inlet module via the receiving hole, and the liquid to be analyzed flows through the chemical sets placed in the flow channel to obtain nanoparticles-carrying liquid, and the nanoparticles-carrying liquid configured to flow into the second region of the reaction module; and a detection module receiving the nanoparticle-carrying liquid from the output hole of the reaction module.

公开(公告)号：US20230152156A1

公开(公告)日：2023-05-18

申请号：US18092394

申请日：2023-01-02

Applicant: NANYANG TECHNOLOGICAL UNIVERSITY

Inventor： Quan LIU

IPC: G01J3/45 ,  G01J3/02 ,  G01J3/18

CPC classification number: G01J3/45 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/18 ,  G01J2003/451

Abstract: The present disclosure provides a radio frequency tagging optical spectrometer, comprising: a dynamic dispersion device, the dynamic dispersion device receiving a beam comprising more than two wavelength components and being driven by driving radio frequency signals, and the dynamic dispersion device encoding the intensity of each wavelength component into the amplitude of a different beat radio frequency signal based on different driving radio frequency signals, wherein the beat frequency of the different beat radio frequency signal is equal to the frequency of the corresponding driving radio frequency signal; a single-channel photodetector for detecting the sum of beat radio frequency signals formed by adding all the beat radio frequency signals; and a processing unit for performing Fourier transform on the sum of the beat radio frequency signals to obtain a spectrum or an associated radio frequency spectrum by which the optical spectrum is obtained.