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  • Volume 50, Issue 08

    More content from Volume 50, Issue 08

    Courtesy of Halliburton
    FIGURE 1. The ICS20 sensor assembly will take up to 20 MOC sensor measurements downhole using a rotating wheel of selected sensors.
    Multivariate optical computing, an all-optical technique for analog calculation, allows simple, robust chemical measurements of fluid samples, enabling in situ determination of...
    Aug. 6, 2014
    Conard Holton2
    The benefits of turning optical research into tools that help society are nowhere more obvious than in the life sciences, especially in applications of biomedicine and bioimaging...
    Aug. 6, 2014
    Prof. David R. Walt
    The juncture of higher education and entrepreneurship is especially relevant in biophotonics. Prof. David R. Walt discusses these two universes and how they mutually benefit each...
    July 31, 2014
    Rice University
    A schematic (a) shows the carbon nanotube (CNT)-based p-n junction terahertz detector. The current-voltage characteristics (b) are shown for the device when illuminated by a 2.52 THz beam (red) and when not illuminated (black).
    Recognizing that narrowband, cryogenic, small-area terahertz detectors serve only limited terahertz-detection applications, an international team of researchers has successfully...
    July 30, 2014
    UT Austin
    A scanning electron microscope (SEM) image shows a metasurface consisting of a rectangular array of off-center 50-nm-thick gold crosses on a 400-nm-thick MQW layer. The structure frequency-doubles mid-IR light reflected at normal incidence (right).
    An international team of researchers has taken two important, often-used optical components and, via a multi-quantum-well (MQW) semiconductor heterostructure and plasmonic metasurface...
    July 30, 2014
    University of Queensland
    The experimental setup used to track and image subcellular structures within yeast cells uses amplitude-squeezed light from a local oscillator and a probe source. Trapping fields (yellow) manipulate the particles, which are also visualized on a CCD camera via an imaging field (green). PBS = polarizing beam splitter; λ/2 = half-wave plate.
    Quantum correlations between photons can be used to surpass shot-noise and diffraction limits in biological-microscopy applications.
    July 29, 2014
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    Strategies in Biophotonics is a two-and-a-half-day event that will include keynotes, conference sessions, and an exhibition. Point-of-care medical technology -- a burgeoning field...
    July 29, 2014
    An international group has created low-defect germanium (Ge) p-i-n avalanche photodiodes (APDs) via a point-defect-healing process consisting of annealing between 600°C and 650...
    July 28, 2014
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    With U.S. Defense Advanced Research Projects Agency (DARPA) and Air Force funding, Vescent Photonics has simultaneously shrunk the size and power consumption of tunable diode ...
    July 28, 2014
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    Quantum dots (QDs) are already found in most segments of the display market, with many tablets, laptops, monitors, and televisions using QDs within the liquid-crystal-display ...
    July 28, 2014
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    LUXeXcel Printoptical Technology uses modified wide-format industrial inkjet printers to economically and digitally fabricate optical structures from CAD files via 3D printing...
    July 28, 2014
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    Researchers at Cranfield University have developed a process to reproducibly fabricate long-period gratings (LPGs) with phase-matching at the turning point.
    July 28, 2014