Fluorescence detecting device, and fluorescence detecting method
AssigneeNational Institutes for Quantum Science and Technology
InventorsRyuji Igarashi, Tamami Yanagi, Kiichi Kaminaga
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Abstract
Provided is a technique of identifying fluorescence emitted from a measurement target, with a simpler device configuration. A fluorescence detection device includes: a generating section that generates pulsed laser light which causes spin polarization and spin relaxation in a phosphor that emits fluorescence whose intensity varies according to magnetic resonance; and a modulating section that modulates the pulse frequency of the pulsed laser light.
Claims8
A fluorescence detection device comprising:
- a generating section that generates pulsed laser light which causes spin polarization and spin relaxation in a phosphor that emits fluorescence whose intensity varies according to magnetic resonance;
- a modulating section that modulates a pulse frequency of the pulsed laser light, wherein the modulating section modulates the pulse frequency of the pulsed laser light with use of a carrier wave having a first frequency and a first phase;
- and
- an intensity modulating section that modulates intensity of the pulsed laser light with use of a carrier wave having a second frequency differing from the first frequency and/or a second phase differing from the first phase.
A fluorescence detection method comprising the steps of:
- generating pulsed laser light which causes spin polarization and spin relaxation in a phosphor that emits fluorescence whose intensity varies according to magnetic resonance;
- modulating a pulse frequency of the pulsed laser light;
- and
- modulating intensity of the pulsed laser light with use of a carrier wave having a second frequency differing from the pulse frequency.
A method for detecting fluorescence which is emitted from a phosphor and whose intensity varies according to magnetic resonance, the method comprising the steps of:
- irradiating the phosphor with pulsed laser light so that the phosphor emits the fluorescence;
- changing a pulse frequency of the pulsed laser light so that the intensity of the fluorescence emitted from the phosphor is changed;
- and
- modulating intensity of the pulsed laser light with use of a carrier wave having a second frequency differing from the pulse frequency.
Dependencies are inferred from the claim text.