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    1. Analyzing Car Paint Through Optical Coherence Tomography

      Analyzing Car Paint Through Optical Coherence Tomography

      Researchers at the University of Liverpool in the UK have demonstrated for the first time how the medical imaging technique optical coherence tomography (OCT) could provide the car industry with a practical way to automatically analyze the distribution and characteristics of the metallic flakes in car paint. Originally a medical imaging technique Medical professionals routinely use optical coherence tomography, invented in 1991, for applications such as diagnosing eye diseases. Meanwhile, OCT is advancing into new biomedical applications and is being explored as a tool for improving manufacturing and industrial processes. The Liverpool team reports that moving their OCT technique from ...

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    2. Optical Coherence Tomography Optical Fiber Assembly Capabilities

      Optical Coherence Tomography Optical Fiber Assembly Capabilities

      OFS , a designer, manufacturer, and supplier of fiber optic products, has introduced new OCT optical fiber assembly capabilities. OFS has developed a technology platform to build optical fiber probes with flexible tip lensing designs to meet critical OCT imaging specifications such as: insertion loss, internal back reflection, beam size and working distance. The company says that because it is vertically integrated with preform (glass) manufacturing, it can make a wide range of fibers with features such as select cutoff, specific numerical apertures, graded index fibers and coreless fibers. Furthermore, polishing and fiber tip shaping skills allow them to assemble custom ...

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    3. III-V Quantum Dot Lasers Grown Directly on Silicon

      III-V Quantum Dot Lasers Grown Directly on Silicon

      The University of California Santa Barbara (UCSB) has grown 1.3 μm-wavelength indium arsenide (InAs) quantum dot (QD) lasers directly on silicon, with record device performance. The breakthrough approach promises an alternative to wafer bonding lasers grown on native substrates, which, in return, could help advance silicon photonics by way of cheap large-scale growth and high-performing QD optoelectronics. The new QD lasers consist of billions of nanometer-sized indium arsenide (InAs) quantum dots, cladded on either side by gallium-arsenide-(GaAs)-related compounds. The structure is grown using a technique called molecular beam epitaxy (MBE) on germanium/silicon substrates. “The excitement from ...

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