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  • Test & Measurement

    • Spectroscopy

    Recent

    (Photo credit: Konstantin Vodopyanov/CREOL)
    The team’s dual-comb spectroscopy system produces precise and stable frequencies.
    (Image credit: LumeDEL)
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    (Image credit: CRAIC Technologies)
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    (Image credit: Exalos)
    exalos
    (Image credit: CRAIC Technologies)
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    (Image credit: MKS Newport)
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    Highlights

    (Image credit: LMU/MPQ)
    The new minimally invasive screening approach needs just a single drop of blood to detect health conditions.
    Bio&Life Sciences

    Infrared spectroscopy meets machine learning

    Justine Murphy
    Oct. 4, 2024
    A minimally invasive screening approach that works with a single drop of blood could potentially revolutionize both reactive and preventative healthcare.
    (Image credit: Ibsen Photonics)
    ibsen_photonics
    Test & Measurement

    Spectrometer features transmission grating-based design

    Ibsen Photonics A/S
    Sept. 26, 2024
    The EAGLE C-OCT-S is an athermal, compact spectrometer, suited for spectral-domain optical coherence tomography (OCT).
    (Image credit: Texas A&M University)
    The portable smartphone-based Raman spectrometer system is capable of detecting and analyzing chemicals and other materials in the field.
    Test & Measurement

    Smartphone-based Raman spectrometer is cost-effectively convenient

    Justine Murphy
    Sept. 20, 2024
    From texting and navigation to banking and video streaming, smartphones are among the most multifaceted technologies ever developed. And now, chemical detection has joined its...
    (Image credit: CREOL)
    FIGURE 1. Experimental setup: Second-harmonic generation (SHG); intrapulse difference frequency generation (IDFG); electro-optic sampling (EOS); λ/4 (quarter-wave plate); mid-infrared (MIR).
    Test & Measurement

    Dual-comb spectroscopy measures 240,000 spectral points in longwave infrared at video rate

    Dmitrii Konnov
    Sept. 9, 2024
    Spectrometry system obtains absorption spectra of gaseous molecules over a spectral range of 1.5 to 45 THz, with up to 240,000 spectral data points in a single measurement spanning...
    (Image credit: Marktech Optoelectronics)
    Detectors & Imaging

    Multiple SWIR wavelength emitter-detector has use in IR spectroscopy

    Marktech Optoelectronics Inc
    Sept. 4, 2024
    The MTMD142345PDT38 multiwavelength shortwave-infrared (SWIR) wavelength emitter-detector provides SWIR detection in the 600–1750 nm range.
    (Image credit: Process Insights)
    Test & Measurement

    CRDS gas analyzer monitors atmospheric greenhouse gases

    May 11, 2024
    The T-I Max AIR cavity ring-down spectroscopy (CRDS) gas analyzer delivers continuous, real-time monitoring.
    (Image credit: Lingyan Shi/UC San Diego Bioengineering)
    Bio&Life Sciences

    PRM-SRS microscopy platform distinguishes specific lipid types

    Justine Murphy
    May 7, 2024
    A Raman microscopy-based imaging approach could crack the long-elusive code of lipids, their subtypes, and the key roles they play in human health, aging, and disease.
    (Photo credit: Lunghammer/NAWI Graz)
    Test & Measurement

    Broadband UV dual-comb spectrometer measures pollutants in real time

    Sally Cole Johnson
    April 29, 2024
    A new type of spectrometer is designed for broad spectral coverage, short acquisition times, and high spectral resolution—and it captures electronic, vibrational, and rotational...
    (Image credit: L. Scarpelli and M. Richard)
    Quantum

    Quantum optics technique reveals new type of light-matter interaction within semiconductors

    Sally Cole Johnson
    Feb. 14, 2024
    Photon-cascade correlation spectroscopy enables peering into the quantum realm: Creating an image-in-time of photons reveals whether they tend to travel together or not, which...