公开(公告)号：US20190323891A1

公开(公告)日：2019-10-24

申请号：US16313668

申请日：2017-06-23

Applicant: FORSCHUNGSVERBUND BERLIN E.V.

Inventor： Bernd SUMPF ,  Martin MAIWALD

IPC: G01J3/44 ,  G01N21/65 ,  G01J3/10

Abstract: Raman spectroscopy methods and devices are disclosed.The method includes irradiation of excitation radiation onto a sample to be examined. The sample is irradiated with a first excitation radiation of a first excitation wavelength and a different second excitation radiation of a second excitation wavelength. The first excitation radiation scattered by the sample is wavelength-selective filtered by means of a passive filter element. A transmitted filter wavelength of the filter element differs from at least the first excitation wavelength and the second excitation wavelength. A first intensity is determined through a single-channel detector assigned to the filter wavelength from the first excitation radiation scattered and filtered by the sample. Additionally, the filter element wavelength-selective filters the second excitation radiation scattered by the sample. A second intensity is determined through the single-channel detector assigned to the filter wavelength from the second excitation radiation scattered and filtered by the sample.