ApplicAtions news
For the latest applications news from the photonics industry go to
www.electrooptics.com/applications
photodynamic therapy promises treatment advances
A new non-surgical, tissue- preserving therapeutic procedure based around photodynamic therapy (PDT) is being developed to remove HPV infection and treat precursors of cervical cancer more effectively. Unlike previous
applications of PDT for the treatment of cancer, this is the first therapeutic treatment that uses advanced LED technology in a self- powered, disposable device that can be deployed inside a body cavity. Cevira is a drug-device
combination procedure that has been accepted for use in a Phase II clinical trial by the US FDA. The trial will take place in multiple centres across the United States and Europe and is expected to start during spring 2011. Cevira is being developed
by Photocure ASA, a Norwegian speciality pharmaceutical company focused on dermatology and cancer, with the help of Sagentia, its global product development partner for the device. Cevira delivers a targeted PDT treatment intended to be used to destroy tissue infected by Human Papilloma Virus (HPV) and treat pre-cancerous lesions on the cervix, without damaging healthy tissue. The Cevira device contains
a LED light source that, in combination with a medicinal product, initiates a photochemical reaction.
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clinical cArs imaging shows potential for early diagnosis of skin diseases
The first clinical CARS (Coherent Anti-Stokes Raman Scattering) imaging in patients with dermatological disorders has been conducted at the Charité hospital in Berlin. Further clinical studies are currently being
performed within the German BMBF project ChemoPraevent to evaluate the potential of the hybrid tomograph MPT-CARS for early diagnosis of skin diseases, optimisation of treatment procedures, the evaluation of the efficacy of cosmetics, and the investigation of side-effects of pharmaceutical drugs such as chemotherapy agents.
NKt joins space race
NKT Photonics has announced that its Koheras-branded DFB fibre lasers have been incorporated into absolute scalar magnetometers produced by the French national space agency CNES and French research agency CEA-Leti. The magnetometers were
selected by the European Space Agency (ESA) for use in its Swarm mission. These instruments were designed, manufactured and
space qualified by CEA-Leti. in France in close partnership with CNES.
The Koheras DFB fibre lasers
are characterised by very low frequency and intensity noise and by inherent single frequency operation, making them suitable for applications that demand a high spectral stability. The lasers were investigated
by CEA-Leti. due to their ability to match the helium transition line at 1,083nm.
Flir supplies Fox sports with cameras
Fox Sports is using thermal imaging to record the extreme temperatures on NASCAR motor vehicles during the Daytona 500. The thermal images are of particular interest as cars running in the rear of a piggy-backed pair
ElEctro optics l APRIL 2011
lose air flow while drafting and must eventually switch places with the lead car to avoid overheating. Flir Advanced Thermal Solutions supplied two of its SC8300 HD thermal cameras to Fox Sports to enable it to cover the race.
The optical in vivo skin biopsies provided
information on morphology at a subcellular level and also lipid and water content. Optical biosies were obtained completely non-invasively, that is without any mechanical or chemical treatments. The novel certified clinical hybrid tomograph
MPT-CARS is a combination of the clinical multiphoton tomograph DermaInspect from Jenlab and the add-on CARS module based on APE’s optical parametric oscillator (OPO). The OPO provides the required second laser beam for CARS imaging.
positioning
equipment chosen for space mission
Scientists at the Institute for Gravitational Research, Glasgow University, have selected PI’s M-824 Hexapod, a six-axis micropositioning system, to construct space flight hardware for the LISA (Laser Interferometer Space Antenna) Pathfinder space mission. Dr Christian Killow, of
Scottish Universities Physics Alliance, said: ‘Gravitational waves can pass through matter virtually unaffected, allowing us to see and measure things, for example black holes coalescing, which are hidden to the electromagnetic spectrum. LISA Pathfinder, a precursor to the main LISA mission, is designed to test the technology needed to detect gravitational waves in space for the first time.’
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