نتایج جستجو برای: optical coherence

تعداد نتایج: 314691  

Journal: :Journal of Current Glaucoma Practice 2012

Journal: :Journal of Lightwave Technology 2021

Journal: :JACC: Cardiovascular Interventions 2017

2009
Akshaya Mishra Alexander Wong Kostadinka Bizheva David A. Clausi

Retinal layer thickness, evaluated as a function of spatial position from optical coherence tomography (OCT) images is an important diagnostics marker for many retinal diseases. However, due to factors such as speckle noise, low image contrast, irregularly shaped morphological features such as retinal detachments, macular holes, and drusen, accurate segmentation of individual retinal layers is ...

2012
Adam M. Zysk Robert W. Schoonover Qiaofeng Xu Mark A. Anastasio

Despite the extensive use of polycapillary x-ray optics for focusing and collimating applications, there remains a significant need for characterization of the coherence properties of the output wavefield. In this work, we present the first quantitative computational method for calculation of the spatial coherence effects of polycapillary x-ray optical devices. This method employs the coherent ...

Journal: :Applied optics 2002
Wei Wang Hirokazu Kozaki Joseph Rosen Mitsuo Takeda

Giving a new physical interpretation to the principle of longitudinal coherence control, we propose an improved method for synthesizing a spatial coherence function along the longitudinal axis of light propagation. By controlling the irradiance of an extended quasi-monochromatic spatially incoherent source with a spatial light modulator, we generated a special optical field that exhibits high c...

2003
Wei Wang Hirokazu Kozaki Joseph Rosen Mitsuo Takeda Anand K. Asundi Wolfgang Osten Vijay K. Varadan

Giving a new physical interpretation to the principle of longitudinal coherence control, we propose an improved method for synthesizing a desired spatial coherence function along the longitudinal axis of light propagation. By controlling the irradiance of an extended quasi-monochromatic spatially incoherent source with a spatial light modulator, we generated a special optical field that exhibit...

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