منابع مشابه
Notch Filter Masks: Practical Image Masks for Planet-Finding Coronagraphs
An ideal coronagraph with a band-limited image mask can efficiently image off-axis sources while removing identically all of the light from an on-axis source. However, strict mask construction tolerances limit the utility of this technique for directly imaging extrasolar terrestrial planets. We present a variation on the basic band-limited mask design—a family of “notch filter” masks—that mitig...
متن کاملConformable solid-index phase masks composed of high-aspect-ratio micropillar arrays and their application to 3D nanopatterning.
Three-dimensional (3D) microstructures are essential elements in various technological applications, including optical coatings, [ 1 , 2 ] tissue engineering scaffolds, [ 3 ] microfl uidics, [ 4 ] energy storage devices, [ 5 , 6 ] plasmonics, [ 7 ] and photonic crystals. [ 8 , 9 ] While conventional methods, such as photo lithography and electron beam lithography, are costly and ineffective in ...
متن کاملAlternative Masks for Nanolithography
The use of masks coming from research field as different as colloids, polymers or nanomaterials is a recently emerging field. Recent advances in this area have developed a variety of practical routes which have a great potential to overcome or at least complete the high-cost lithographic techniques. This review focuses on three techniques that try to reduce to the nanometer range, the size of t...
متن کاملRitual, Masks, and Sacrifice
INTRODUCTION Ritual is intimately connected with the mask, either in the wearing that hides the true face, or in the adoption of a public face. The mask makes the disengagement from ordinary time and the connection to the ancient and repetitive, which is the heart of ritual, psychologically acceptable. Together, ritual and mask facilitate the apprehension of identity and its connections with pa...
متن کاملSubdivision schemes with nonnegative masks
The conjecture concerning the characterization of a convergent univariate subdivision algorithm with nonnegative finite mask is confirmed.
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ژورنال
عنوان ژورنال: Issledovatel'skiy zhurnal russkogo yazyka i literatury
سال: 2020
ISSN: 2345-2498,2476-3500
DOI: 10.29252/iarll.15.121