Search results for "Lensless holographic microscopies"

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Femtosecond digital lensless holographic microscopy to image biological samples

2013

The use of femtosecond laser radiation in digital lensless holographic microscopy (DLHM) to image biological samples is presented. A mode-locked Ti:Sa laser that emits ultrashort pulses of 12 fs intensity FWHM, with 800 nm mean wavelength, at 75 MHz repetition rate is used as a light source. For comparison purposes, the light from a light-emitting diode is also used. A section of the head of a drosophila melanogaster fly is studied with both light sources. The experimental results show very different effects of the pinhole size on the spatial resolution with DLHM. Unaware phenomena on the field of the DLHM are analyzed.

Materials scienceTime FactorsHolographyHolographydigital lensless holographic microscopylaw.inventionOpticslawMicroscopyImage Processing Computer-AssistedAnimalsImage resolutionfemtosecondMicroscopybusiness.industryTin CompoundsLaserAtomic and Molecular Physics and OpticsLensless holographic microscopiesDrosophila melanogasterFemtosecondDigital holographic microscopyPinhole (optics)businessHeadDigital holographyimage biological samples

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