A gated dual optical path nanosecond transient circular polarization emission spectrometer

By employing a gated dual-path nanosecond transient circularly polarized emission spectrometer, the problem of simultaneous measurement of left-handed and right-handed circularly polarized light in nanosecond transient circularly polarized emission spectroscopy was solved using beam splitting and integration techniques. This achieved efficient and low-error measurement, reducing sample damage and systematic errors.

CN120489981BActive Publication Date: 2026-04-10EAST CHINA NORMAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-05-27
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing technologies cannot simultaneously and efficiently measure left-handed and right-handed circularly polarized emission in nanosecond transient circularly polarized emission spectroscopy measurements with low error, and suffer from problems such as waveplate repetition positioning deviation, spatial optical path non-overlap, and sample damage.

Method used

A gated dual-path nanosecond transient circularly polarized emission spectrometer is employed, comprising an excitation device, a beam splitter, left-hand and right-hand circularly polarized light collection devices, a detection device, and a dual-path gated delay integration device. By using beam splitting and integration techniques, left-hand and right-hand circularly polarized light can be measured simultaneously, reducing system errors.

Benefits of technology

It enables simultaneous measurement of left-handed and right-handed circularly polarized light, reducing measurement time and error, improving measurement efficiency, reducing sample damage, and enhancing system stability.

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Abstract

The present application belongs to the field of spectral measurement, in particular, the field of new material detection. The present application provides a kind of gated double optical path nanosecond transient circular polarization emission spectrometer, comprising: excitation device, for exciting sample luminescence, and converging luminescence beam into parallel light;Beam splitting device, for splitting the parallel light into two luminescence beams, respectively for left-handed / right-handed circularly polarized light measurement;Left-handed / right-handed circularly polarized light collection device, for selecting out left-handed / right-handed circularly polarized light in the divided luminescence beam and converging;Left-handed / right-handed circularly polarized light detection device, for monochromatic processing of the required wavelength light in left-handed / right-handed circularly polarized light spectrum and then photoelectric detection;Double-channel gate delay integration device, for respectively collecting the signals of the left-handed / right-handed circularly polarized light detection device;And computer, for analyzing, graphically displaying and storing the signals collected by the double-channel gate delay integration device.
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Citation Information

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