Finely control groove-depth variations of large-area diffraction gratings

2015 ◽  
Author(s):  
Lixiang Wu ◽  
Keqiang Qiu ◽  
Xiaolong Jiang ◽  
Yanchang Zheng ◽  
Xiangdong Xu ◽  
...  
Keyword(s):  
Diffraction Gratings ◽  
Groove Depth ◽  
Large Area

Photon excitation of surface plasmons in diffraction gratings: Effect of groove depth and spacing

1976 ◽  
Vol 13 (6) ◽  
pp. 2372-2376 ◽  
Author(s):  
C. E. Wheeler ◽  
E. T. Arakawa ◽  
R. H. Ritchie
Keyword(s):  
Surface Plasmons ◽  
Diffraction Gratings ◽  
Groove Depth ◽  
Photon Excitation

Large-area rainbow holographic diffraction gratings on a curved surface using transferred photopolymer films

2018 ◽  
Vol 43 (4) ◽  
pp. 675 ◽  
Author(s):  
Wen-gao Lu ◽  
Ru Xiao ◽  
Juan Liu ◽  
Lei Wang ◽  
Haizheng Zhong ◽  
...  
Keyword(s):  
Diffraction Gratings ◽  
Curved Surface ◽  
Large Area

scholarly journals The design, fabrication and performance of a large area 10000 line/mm metal transmission diffraction gratings for soft X-ray

2008 ◽  
Vol 57 (10) ◽  
pp. 6386
Author(s):  
Zhu Wei-Zhong ◽  
Wu Yan-Qing ◽  
Guo Zhi ◽  
Zhu Xiao-Li ◽  
Ma Jie ◽  
...  
Keyword(s):  
Diffraction Gratings ◽  
Large Area ◽  
X Ray ◽  
And Performance

scholarly journals Large area nanoimprint enables ultra-precise x-ray diffraction gratings

2017 ◽  
Vol 25 (19) ◽  
pp. 23334 ◽  
Author(s):  
D. L. Voronov ◽  
E. M. Gullikson ◽  
H. A. Padmore
Keyword(s):  
Diffraction Gratings ◽  
X Ray Diffraction ◽  
Large Area ◽  
X Ray

Replication Lithography

1984 ◽  
Vol 38 ◽  
Author(s):  
H. W. Deckman ◽  
J. H. Dunsmuir
Keyword(s):  
Science And Technology ◽  
Diffraction Gratings ◽  
New Method ◽  
Pattern Transfer ◽  
Large Area ◽  
Surface Textures ◽  
Aspect Ratios ◽  
Dry Processing ◽  
Inorganic Substrate

AbstractA new method has been developed which allows submicron patterns to be rapidly copied from a master into an inorganic substrate. Physical repli-cation and lithographic pattern transfer are combined to produce a wide variety of surface textures on large area substrates. Physical replication techniques are used to create a polymeric intermediate transfer mask which is then used as an etch mask on the substrate. Both positive and negative copies of the original pattern can be created using this process. Final pattern transfer is accomplished by dry processing, allowing precisely controlled alterations of the aspect ratios in the original pattern. Using this process it is possible to fabricate extremely large area submicron sized surface textures (such as diffraction gratings) which are useful in many areas of science and technology.

The Wear Analysis of Chisel-Edge Ruling Tool for Diffraction Gratings

2013 ◽  
Vol 772 ◽  
pp. 389-393
Author(s):  
Jiri Galantu
Keyword(s):  
Tool Wear ◽  
Diffraction Efficiency ◽  
Diffraction Gratings ◽  
Groove Depth ◽  
The Other ◽  
Wear Analysis ◽  
Test Study

The wear analysis of chisel-edge ruling tool for diffraction gratings is very complex because of following two reasons that one is the wear distribution on edge after grating ruling is too minute so that hard to find and measured by conventional equipment like microscope, and the other is the effect of wear on the groove depth, pitch, ridge, blaze angle, non-blaze angle, groove bottom angle and diffraction efficiency of gratings. In order to determine what extent of wear is can be ignored, this paper had go on brief approximate test study on wear analysis of chisel-edge ruling tool for diffraction gratings which ruling echelle gratings groove density of 79 gr/mm, and analyzed the variation of groove depth, pitch, ridge, blaze angle, non-blaze angle, groove bottom angle and diffraction efficiency along with ruling distance, and found the microscale tool wear on chisel-edge ruling tool, finally determined this extent of tool wear cannot effect ruling echelle gratings groove density of 79 gr/mm .

Convergent Beam Electron Diffraction

1978 ◽  
Vol 36 (3) ◽  
pp. 304-315
Author(s):  
G. Lehmpfuhl
Keyword(s):  
Electron Diffraction ◽  
Diffraction Pattern ◽  
Crystal Surface ◽  
Diffraction Spot ◽  
Crystal Thickness ◽  
Large Area ◽  
Electron Microscopic ◽  
Additional Information ◽  
Microscopic Investigations

Introduction In electron microscopic investigations of crystalline specimens the direct observation of the electron diffraction pattern gives additional information about the specimen. The quality of this information depends on the quality of the crystals or the crystal area contributing to the diffraction pattern. By selected area diffraction in a conventional electron microscope, specimen areas as small as 1 µ in diameter can be investigated. It is well known that crystal areas of that size which must be thin enough (in the order of 1000 Å) for electron microscopic investigations are normally somewhat distorted by bending, or they are not homogeneous. Furthermore, the crystal surface is not well defined over such a large area. These are facts which cause reduction of information in the diffraction pattern. The intensity of a diffraction spot, for example, depends on the crystal thickness. If the thickness is not uniform over the investigated area, one observes an averaged intensity, so that the intensity distribution in the diffraction pattern cannot be used for an analysis unless additional information is available.

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