Parametric geometry analysis for circular-aperture off-axis parabolic mirror segment

نویسندگان

چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Synthetic aperture superresolution with multiple off-axis holograms.

An optical setup to achieve superresolution in microscopy using holographic recording is presented. The technique is based on off-axis illumination of the object and a simple optical image processing stage after the imaging system for the interferometric recording process. The superresolution effect can be obtained either in one step by combining a spatial multiplexing process and an incoherent...

متن کامل

Fresnel diffraction by a circular aperture with off-axis illumination and its use in deconvolution of microscope images.

The Fresnel approximation for off-axis illumination of a circular aperture is reexamined. The point-spread function for an aberration-free system can be expressed in terms of redefined optical coordinates. An improved expression is given for contours of constant intensity in the focal plane. The variation in axial width of the focal spot with angle of offset is discussed. The predictions are co...

متن کامل

Parametric Numerical Study of Off-Axis Pulse Tube Losses

Recently there has been an emphasis on applying numerical modeling, with varying degrees of complexity, to the study of the notorious sensitivity of the pulse tube cryocooler to off-axis operation. Previous work has demonstrated the suitability of applying multi-dimensional CFD simulation to the pulse tube cryocooler both as a whole and at the component level for qualitative and quantitative an...

متن کامل

Mode-Matching Analysis for Circular and Annular Aperture Scattering

The mode-matching applications to scattering from circular and annular apertures in a thick perfectly conducting plane are reviewed. The Hankel and Weber transforms are utilized to solve the boundary-value problems of circular and annular apertures. Simple electrostatic problems are presented to illustrate the mode-matching method in terms of the Hankel and Weber transforms. Various types of We...

متن کامل

Computer-generated holograms for optical neural networks: on-axis versus off-axis geometry.

For optical neural networks implemented with computer-generated planar holograms the spacebandwidth product of the hologram is a major consideration. Off-axis holograms can be fabricated with a single binary transmission mask. However, the carrier frequency greatly increases the space-bandwidth product. On axis-holograms use a lower space-bandwidth product to encode interconnections but require...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of Astronomical Telescopes, Instruments, and Systems

سال: 2019

ISSN: 2329-4124

DOI: 10.1117/1.jatis.5.2.024010