Method of fabricating tubular laser light source, tubular laser light source and detection device using tubular laser light source

Patent metadata

Field	Value
Publication number	US-2020393361-A1
Application number	US-201816771297-A
Country	US
Kind code	A1
Filing date	Jun 20, 2018
Priority date	Dec 19, 2017
Publication date	Dec 17, 2020
Grant date	—

Abstract

A tube preparation step of preparing a resin tube that has a tube wall impregnable with a solution including a fine substance and is made of a light-transmitting resin material, a solution preparation step of preparing a solution that includes a fine fluorescent substance that emits fluorescence or a fine scattering substance that scatters light as an oscillation material and an impregnation step of causing the resin tube to be immersed in the solution and causing the tube wall of the resin tube to be impregnated with the oscillation material, are included.

First claim

1 . A method of fabricating a tubular laser light source that oscillates laser light outwardly of a tube wall based on light emitted from a fluorescent substance or scattered by a scattering substance, including:
a tube preparation step of preparing a resin tube that has the tube wall impregnable with a solution including a fine substance and is made of a light-transmitting resin material; a solution preparation step of preparing a solution that includes a fine fluorescent substance that emits fluorescence or a fine scattering substance that scatters light as an oscillation material; and an impregnation step of causing the resin tube to be immersed in the solution and causing the tube wall of the resin tube to be impregnated with the oscillation material.

2 . The method of fabricating a tubular laser light source according to claim 1 , wherein
a refractive index adjusting substance for adjusting a refractive index in the tube wall is included in the solution in the solution preparation step, and the tube wall is impregnated with the refractive index adjusting substance together with the oscillation material in the impregnation step.

3 . The method of fabricating a tubular laser light source according to claim 1 , wherein
the resin tube is an acrylic acid tube.

4 . A tubular laser light source configured to oscillate laser light outwardly of a tube wall from an inside of the tube wall based on light emitted from a fluorescent substance or scattered by a scattering substance, wherein
the tube wall is impregnable with a solution including a fine substance, and the tube wall, of a resin tube that is made of a light-transmitting resin material, is impregnated with a fine fluorescent substance that emits fluorescence or a fine scattering substance that scatters light together with the fluorescent substance as an oscillation material.

5 . The tubular laser light source according to claim 4 , wherein
the tube wall is impregnated with a refractive index adjusting substance for adjusting a refractive index in the tube wall together with the oscillation material.

6 . The tubular laser light source according to claim 4 , wherein
the oscillation material is an organic EL material, and the tubular laser light source includes a voltage applier that applies a voltage for exciting the organic EL material to a portion between an inner surface and an outer surface of the resin tube.

7 . The tubular laser light source according to claim 4 , wherein
the resin tube is an acrylic acid tube.

8 . A detection device comprising:
a measurement cell configured such that a sample flows through an inner flow path of the tubular laser light source according to claim 4 ; an oscillator that causes the tubular laser light source to oscillate laser light; a detector that detects measurement light emitted outwardly of a tube wall of the tubular laser light source; and a calculator configured to obtain concentration of a component of the sample flowing through the inner flow path of the tubular laser light source based on intensity or a wavelength of the measurement light detected by the detector.

9 . The detection device according to claim 8 , wherein
the measurement cell is configured such that a plurality of the tubular laser light sources configured to oscillate laser light rays that are different from one another are in fluid connection with one another in series or in parallel, the detector has a detection element that detects measurement light from each of the plurality of the tubular laser light sources, and the calculator is configured to obtain concentration of a component or a type of component of a sample flowing through an inner flow path of the tubular laser light source based on intensity or a wavelength of each measurement light detected by the detection element of the detector.

Assignees

• Shimadzu Corp

Inventors

• Nagai Yusuke
• Kajikawa Kotaro

Classifications

• H01S3/307

  in a liquid · CPC title

• H01S3/2358

  comprising dyes as the active medium · CPC title

• H01S3/213

  including an organic dye · CPC title

• H01S3/168 Primary

  using an organic dye dispersed in a solid matrix · CPC title

• H01S3/1086

  using scattering effects, e.g. Raman or Brillouin effect · CPC title