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  • Volume 54, Issue 02
  • Volume 54, Issue 02

    More content from Volume 54, Issue 02

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    Recognizing that the high cost of InGaAs-based photodetectors in the visible through SWIR region is limiting certain emerging applications, research groups and sensor companies...
    Feb. 15, 2018
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    A group at Harvard University has come up with a miniature version of a "delta" robot that looks to be quite handy for laboratory use, including in photonics and biophotonics ...
    Feb. 15, 2018
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    A team of researchers has made headway in understanding why quantum dots composed of cesium-lead-halide compounds are much brighter and radiate much faster than other engineered...
    Feb. 15, 2018
    Courtesy of Fraunhofer ILT
    The next generation of additive manufacturing devices will be bigger and ready for large scale manufacturing as the device presented by the Fraunhofer ILT at the recent formnext.
    This year, these photonics trends will lead the list: lidar, VCSELs, additive manufacturing, quantum technologies, and high-intensity laser systems.
    Feb. 15, 2018
    Conard Holton2
    Biophotonics benefits from technology and component advances in both obvious and less obvious.
    Feb. 15, 2018
    FIGURE 1. A Nano-MTA2 nanopositioner is commanded with a 25 nrad peak-to-peak square wave at 1 Hz; the external angular-displacement measurement (a) and position-sensor output voltage (b) are shown as a function of time.
    Nanoscale systems from atomic-force microscopes to the Advanced Laser Interferometer Gravitational-Wave Observatory (LIGO) achieve their feats through piezo nanopositioning.
    Feb. 15, 2018
    (Courtesy of Xenics)
    FIGURE 1. Shown is the top view of the high-speed XLIN-FC linear SWIR array that achieves line rates up to 400 kHz for 512-, 1024-, or 2048-pixel resolutions.
    Whether type-II superlattice or other exotic semiconductor architecture forced to operate in cryogenic, room-temperature, or hot conditions, infrared photodetectors are advancing...
    Feb. 15, 2018
    FIGURE 1. This small two-dimensional barcode mark produced on metal is of a type used in the automotive industry.
    A picosecond laser technique satisfies the need for permanent unique device identifier (UDI) marking of stainless steel medical devices without requiring postprocessing.
    Feb. 15, 2018
    (Courtesy of the Holst Centre)
    FIGURE 1. A microLED panel shows how the tiny, closely spaced pixels can be integrated into flexible materials for personal wearable displays.
    Augmented and virtual reality, illuminated clothing, and health monitoring are just the beginning of a photonic wearable industry enabled by low-cost, miniaturized optoelectronic...
    Feb. 15, 2018
    FIGURE 1. Fiducials can be manufactured into a freeform optic for metrology purposes; shown is a model of a freeform optic with x-, y-, and z-axis fiducials designed into the part (a) with a desired absolute position of the optic's surfaces relative to the fiducials, as well as the irregularity map for each optical surface (b).
    Three metrology tools for the measurement of freeform optics are compared: the coordinate measurement machine, a high-accuracy profilometer, and a noncontact optical technique...
    Feb. 15, 2018
    An example of an image taken in a single-molecule localization microscopy (SMLM) setup from the Department of Biotechnology & Biophysics at Julius-Maximilian-University of Würzburg; the three-color image is a BPAE cell with mitotracker (red), actin (cyan), and nucleus (DAPI; blue) staining (recording time: 4 s per channel, with 2048 × 2048 pixel image detail).
    Advances in laser manufacturing are enabling extremely compact multi-line illumination devices that ease instrumentation design and serve researchers' needs for fuss-free reliability...
    Feb. 14, 2018
    (Photo credit: Carolyn Richardson)
    Dr. Unil Perera of Georgia State University has led research that proves ATR-FTIR spectroscopy's value in identifying biomarkers for melanoma and non-Hodgkin lymphoma; the method indicates the possibility of low-cost screening for a range of diseases using only blood samples.
    Fourier-transform infrared (FTIR) spectroscopy in attenuated total reflection (ATR) sampling mode has diagnostic potential as a rapid, reliable, and minimally invasive screening...
    Feb. 14, 2018