نتایج جستجو برای: لیزر spatial hole burning

تعداد نتایج: 440472  

Journal: :Optics letters 2008
Adrian A Juarez Ramon Vilaseca Zhaoming Zhu Daniel J Gauthier

We observe spectral hole burning in a room-temperature optical fiber pumped by a spectrally broadened pump beam. This beam drives the stimulated Brillouin process, creating an inhomogeneously broadened resonance in the material whose shape can be engineered by tailoring the beam's spectrum. A monochromatic saturating beam "burns" a narrow spectral hole that is approximately 10(4) times narrower...

Jalil Pirayesh Islamian, Parvaneh Darkhor Samira Abbaspour

Introduction: In nuclear medicine, the use of a pixelated semiconductor detector such as CZT is an of growing interest for introducing new devices. Especially, the spatial resolution can be improved by using a pixelated parallel-hole collimator with equal holes and pixel sizes based on the pixelated detector. The purpose of this study was to compare the effect of pixelated and ...

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