Synthesis of longitudinal coherence functions by spatial modulation of an extended light source: a new interpretation and experimental verifications.
نویسندگان
چکیده
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 coherence selectively for a specific pair of points at specified locations along the axis of beam propagation. This function of longitudinal coherence control provides new possibilities for dispersion-free measurements in optical tomography and profilometry. A quantitative experimental proof of principle is presented.
منابع مشابه
New principle for optical tomography and profilometry based on spatial coherence synthesis with a spatially modulated extended light source
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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ورودعنوان ژورنال:
- Applied optics
دوره 41 10 شماره
صفحات -
تاریخ انتشار 2002