Optical Sensing

Prof Robert Hadfield
Frontiers in photon counting: Infrared single photon detection with superconducting nanowires

The ability to detect light quanta (single photons) underpins a host of emerging scientific and technological applications. At infrared wavelengths, detectors based on superconducting materials offer significant performance advantages over conventional photon counters such as photomultipliers and semiconductor avalanche photodiodes. I will discuss state-of-the-art and new developments in superconducting photon-counting detectors based on superconducting nanowires and highlight the application areas including quantum communications.

Dr Adam Polak
Infrared spectroscopy as a tool for optical sensing

Optical sensing is an extremely powerful approach for detection and identification of various objects and substances of interest. One of the techniques enabling this process is optical spectroscopy. In this webinar, a very light introduction of this concept will be given and the importance of the mid-infrared region will be briefly outlined. To demonstrate its potency, several industrial applications of various spectroscopy embodiments developed in Fraunhofer Centre for Applied Photonics will also be presented.

Michele Lacerenza
Compact time-domain near infrared spectroscopy (TD-NIRS) oximeter for non-invasive brain and muscle monitoring

The bulkiness and complexity of brain oximeters have strongly limited the spread of wearable, non-invasive, neuroimaging techniques such as time-domain near infrared spectroscopy (TD-NIRS). A new compact optical device has been developed to overcome these limitations, making TD-NIRS more accessible to non-experts and adaptable to any measurement condition, paving the way for muscle and brain oximetry in healthcare and sport environments.

Dr James Bain
Optical sensing technologies at M Squared

M Squared are a photonics technology company serving a broad range of scientific and industrial application sectors. The company is involved in many underpinning technologies, systems and application developments. They collaborate widely with several industrial and academic partners in the area of optical sensing. Key sectors include stand-off sensing, gas imaging, satellite calibration tools, distilled spirit analysis and advanced microscopy.

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