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  • Volume 6, Issue 4
  • Volume 6, Issue 4

    More content from Volume 6, Issue 4

    FIGURE 1. (a) The VCSEL is fabricated using semiconductor processing techniques (b) on wafers yielding many (c) single VCSEL devices. (d) Traditional OCT swept-source technologies tune many laser modes under the tunable filter envelope. (e) The VCSEL differs from previous technologies in that it tunes a single longitudinal mode. (F) A comparison of OCT technologies shows that the VCSEL does not lose appreciable imaging sensitivity over a 12 mm imaging range while previous technologies show significant sensitivity loss over only a few millimeters. (g) The VCSEL can be operated to achieve a 1.5 m OCT imaging range at high imaging speeds, much longer than previous OCT technologies.
    Light sources based on vertical cavity surface-emitting laser (VCSEL) technology enable optical coherence tomography (OCT) to achieve long imaging range, high speed, and flexibility...
    July 17, 2013
    1307bow News Fig4
    Biophotonics was a major theme at this 40th anniversary edition of the biennial mega-event LASER World of Photonics trade fair and World of Photonics Congress (May 13-16, 2013...
    July 17, 2013
    The U.S.'s National Photonics Initiative, a collaboration involving five industry associations, has an equal number of working groups, including one dedicated to health and medicine.
    Although the United States currently leads the world in biophotonics, other nations are making significant investments -- and as a result, the country has lost substantial global...
    July 17, 2013
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    By shining light of various colors through a nanoscale synthetic-polymer sphere, researchers have fashioned volcano-shaped nanostructures able to store precise amounts of other...
    July 17, 2013
    1307bow Break Fig4
    A newly developed class of photo-switchable molecules that enable remote, noninvasive control of protein-protein interactions will serve as a prototype to develop photo-switchable...
    July 17, 2013
    1307bow Break Fig6
    For her PhD thesis, Aránzazu Jurío-Munárriz, a graduate student in computer engineering at the NUP/UPNA-Public University of Navarre in Spain, has improved two of the algorithms...
    July 17, 2013
    Genetic mutations are a major cause of hearing loss in developed countries: At least half of all infants who become deaf can trace their conditions to mutations, as can many people...
    July 17, 2013
    1307bow Break Fig3
    An iPhone app and an optics-rich smartphone cradle are enabling sensitive yet inexpensive biosensing of toxins, proteins, bacteria, viruses, and other molecules.
    July 17, 2013
    1307bow Break Fig1
    A new type of imaging probe is enabling real-time visualization of excitatory and inhibitory synapses that change as new memories are formed.
    July 17, 2013
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    Research in optical coherence tomography (OCT) technology has recently focused on development of ultrafast (>100 kHz A-line rate) Fourier domain OCT (FD-OCT).
    July 17, 2013
    Barbaragoode2
    In a Market Focus session titled Medical and Aesthetic Lasers - the Future of Light-Tissue Interaction, presentations at OSA's Conference on Lasers and Electro-Optics (CLEO) 2013...
    July 17, 2013