نتایج جستجو برای: optical instrument
تعداد نتایج: 346252 فیلتر نتایج به سال:
Optical data manipulation technologies increasingly employ densely aperiodic optical 3D phase elements. Refinement of such technologies will require the capability to quantitatively characterize the volumetric dielectric modulation of an optical sample to a high level of precision and spatial resolution. We present a scanning transmission microscopy system that uses a position-sensitive detecto...
Most flying-spot optical coherence tomography and optical coherence microscopy (OCM) systems use a symmetric confocal geometry, where the detection path retraces the illumination path starting from and ending with the spatial mode of a single-mode optical fiber. Here we describe a visible light OCM instrument that breaks this symmetry to improve transverse resolution without sacrificing collect...
Rachel Ostroff Gregory R. Bogart BioStar, Incorporated 6655 Lookout Road Boulder, Colorado 80301 Abstract. The fixed-polarizer ellipsometer measures thickness of thin films. It is simple, inexpensive, and provides a linear response over a range of 800 Å. We develop a matrix formulation to describe the optical characteristics of the instrument and apply it to the case of a single thin film on a ...
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