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Li et al., 2016 - Google Patents

Ppb-level mid-infrared ethane detection based on three measurement schemes using a 3.34-μm continuous-wave interband cascade laser

Li et al., 2016

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Document ID
11368247570272922282
Author
Li C
Zheng C
Dong L
Ye W
Tittel F
Wang Y
Publication year
Publication venue
Applied Physics B

External Links

Snippet

A ppb-level mid-infrared ethane (C 2 H 6) sensor was developed using a continuous-wave, thermoelectrically cooled, distributed feedback interband cascade laser emitting at 3.34 μm and a miniature dense patterned multipass gas cell with a 54.6-m optical path length. The …
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    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
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    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
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    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
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    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
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    • G01N33/0004—Gaseous mixtures, e.g. polluted air
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    • G—PHYSICS
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