The detection of beads with a diameter of 200 nm, which is smaller than the diffraction limit, was realized, demonstrating the exceptional sensitivity of the line-scan Raman spectroscopy system.

Extended InGaAs arrays can also be used, which can detect out to 2.6 µm or 2.2 µm, but these detectors are not only more expensive, but also noisier than conventional InGaAs detectors. It is slightly ...

More information: Jingyuan Zheng et al, An On-Chip Photon-Counting Reconstructive Spectrometer with Tailored Cascaded Detector Array, Advanced Devices & Instrumentation (2023). DOI: 10.34133/adi.0021 ...

Combining a position-sensitive detector (PSD) with a Fabry-Perot interferometer creates an extremely compact spectrometer ideal for use in the process industry (Mid Sweden University doctoral thesis ...

QE65000 Spectrometer Has Back-thinned CCD Detector for Low-Light Level Applications. Dunedin, Fla., November 2006 - The QE65000 from Ocean Optics is a high-sensitivity, scientific-grade spectrometer ...

Microplastics, as plastics particles smaller than 5 mm in size, have caused an environmental pollution issue that cannot be ignored by our society. Raman spectroscopy technology, with its non- ...