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In optical sampling, a transient waveform under study is sampled with time delayed laser pulses, achieving a high time resolution. The limitations in measurement time due to the mechanical adjustment of the time delay can be overcome by asynchronous optical sampling (ASOPS) [1], where two pulsed lasers with slightly detuned repetition rates are employed. This technique is commonly used for studying...
We present a high-speed, high-resolution, non-mechanical time-domain method for low coherence interferometry, utilizing multiheterodyne detection via two mode-locked femtosecond lasers. Tomographic depth sensing over 150 mm with 5.9 kHz scanning rates and 8 mum depth resolution is demonstrated.
Die disseminierte superfizielle aktinische Porokeratose (DSAP) ist eine seltene, genetisch heterogene Hauterkrankung. Wir berichten über den Fall einer 73-jährigen Frau, bei der die Diagnose einer DSAP mittels optischer Kohärenztomographie (OCT) und Histologie gestellt wurde. Während der letzten 4 Jahre vor Diagnosestellung entwickelte sie mehrere (prä)maligne Hautläsionen an den Unterschenkeln einschließlich...
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