scholarly journals Reflection type single-order diffraction grating

2012 ◽  
Vol 61 (15) ◽  
pp. 154203
Author(s):  
Weng Yong-Chao ◽  
Kuang Long-Yu ◽  
Gao Nan ◽  
Cao Lei-Feng ◽  
Zhu Xiao-Li ◽  
...  
Keyword(s):  
Diffraction Grating ◽  
Order Diffraction

Single-order diffraction grating designed by trapezoidal transmission function

2015 ◽  
Vol 40 (11) ◽  
pp. 2657 ◽  
Author(s):  
Quanping Fan ◽  
Yuwei Liu ◽  
Chuanke Wang ◽  
Zuhua Yang ◽  
Lai Wei ◽  
...  
Keyword(s):  
Diffraction Grating ◽  
Transmission Function ◽  
Order Diffraction

A Display Based On Switchable Zero Order Diffraction Grating Light Valves

1985 ◽  
Author(s):  
Josephine A. Steir ◽  
Jan A. Rajchman ◽  
John Melngailis ◽  
Deborah A. Summa
Keyword(s):  
Diffraction Grating ◽  
Zero Order ◽  
Order Diffraction

A novel single-order diffraction grating: Random position rectangle grating

2016 ◽  
Vol 25 (5) ◽  
pp. 054209
Author(s):  
Zuhua Yang ◽  
Qiangqiang Zhang ◽  
Jing Wang ◽  
Quanping Fan ◽  
Yuwei Liu ◽  
...  
Keyword(s):  
Diffraction Grating ◽  
Order Diffraction ◽  
Random Position

The morphology of moth and butterfly wing scales which exhibit reflective diffraction phenomena

1992 ◽  
Vol 50 (2) ◽  
pp. 1010-1011
Author(s):  
M.E. Lee ◽  
E.O. de Neijs
Keyword(s):  
Thin Film ◽  
Diffraction Grating ◽  
Grating Period ◽  
Butterfly Wing ◽  
First Order ◽  
Transmission Grating ◽  
Order Diffraction ◽  
Layer Structures ◽  
Optical Effects ◽  
Wing Scales

The butterfly and moth families illustrate how nature has used diffractive micro-relief structures to achieve unique optical effects. Whereas the majority of insects use pigments (absorption) or occasionally thin film multi-layer structures (interference) to create colour, the wings of many families of butterfly and moth have complex 2-D or 3-D arrangements of submicron grating structures which produce zero and higher order diffraction conditions.The special properties of a diffraction grating can be understood by light incident perpendicularly on a transmission grating. The light is diffracted into a number of grating orders at angles θn given by the grating equation sin θn = n λ/d where λ is the wavelength of the light, n = 0, ± 1, --- and d is the grating period. The same conditions are valid for reflective diffraction structures. If the grating period is finer than the wavelength ie. d < λ, no first order diffraction exists for normal illumination.

High-order diffraction grating as light harvesters for solar energy conversion

2020 ◽  
Vol 873 ◽  
pp. 114490 ◽  
Author(s):  
Gyo Hun Choi ◽  
Dong Jun Kim ◽  
Juyoung Moon ◽  
Jong Hak Kim ◽  
Jung Tae Park
Keyword(s):  
Solar Energy ◽  
Energy Conversion ◽  
Diffraction Grating ◽  
Solar Energy Conversion ◽  
High Order ◽  
Order Diffraction

scholarly journals Electrically Tunable Diffraction Grating Based on Liquid Crystals

2018 ◽  
Vol 2018 ◽  
pp. 1-4 ◽  
Author(s):  
Chuen-Lin Tien ◽  
Rong-Ji Lin ◽  
Shu-Hui Su ◽  
Chi-Ting Horng
Keyword(s):  
Liquid Crystals ◽  
Diffraction Efficiency ◽  
Probe Beam ◽  
Diffraction Grating ◽  
First Order ◽  
Periodic Distribution ◽  
Order Diffraction ◽  
Periodic Electric Field ◽  
Linearly Polarized ◽  
Small Voltage

A periodic electric field is generated in the grating-like electrodes cell by an applied voltage and results in the reorientation of liquid crystals. The linearly polarized probe beam experienced periodic distribution of refractive index and formed a phase grating. He-Ne laser was used as the probe beam to detect the zeroth-order (o) and first-order (+1) diffraction intensities. The experimental results showed that the diffraction grating can be switched on by applying a small voltage. The optimal first-order diffraction efficiency is about 12%. The dependence of the first-order diffraction efficiency on the polarization of the probed beam is also discussed herein.

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