Rapid and Large‐Scale Fabrication of Full Color Woodpile Photonic Crystals via Interference from a Conformal Multilevel Phase Mask

2019 ◽  
Vol 29 (44) ◽  
pp. 1904971 ◽  
Author(s):  
Sang‐Hyeon Nam ◽  
Junyong Park ◽  
Seokwoo Jeon
Keyword(s):  
Photonic Crystals ◽  
Large Scale ◽  
Phase Mask ◽  
Full Color

scholarly journals Spatial multiplexing holographic combiner for glasses-free augmented reality

Nanophotonics ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 3003-3010
Author(s):  
Jiacheng Shi ◽  
Wen Qiao ◽  
Jianyu Hua ◽  
Ruibin Li ◽  
Linsen Chen
Keyword(s):  
Augmented Reality ◽  
Large Scale ◽  
Motion Parallax ◽  
Visible Spectrum ◽  
Physical World ◽  
Spatial Multiplexing ◽  
White Balance ◽  
Full Color ◽  
Entire Visible Spectrum ◽  
3D Scene

AbstractGlasses-free augmented reality is of great interest by fusing virtual 3D images naturally with physical world without the aid of any wearable equipment. Here we propose a large-scale spatial multiplexing holographic see-through combiner for full-color 3D display. The pixelated metagratings with varied orientation and spatial frequency discretely reconstruct the propagating lightfield. The irradiance pattern of each view is tailored to form super Gaussian distribution with minimized crosstalk. What’s more, spatial multiplexing holographic combiner with customized aperture size is adopted for the white balance of virtually displayed full-color 3D scene. In a 32-inch prototype, 16 views form a smooth parallax with a viewing angle of 47°. A high transmission (>75%) over the entire visible spectrum range is achieved. We demonstrated that the displayed virtual 3D scene not only preserved natural motion parallax, but also mixed well with the natural objects. The potential applications of this study include education, communication, product design, advertisement, and head-up display.

A self-assembly based on a hydrogel interface: facile, rapid, and large-scale preparation of colloidal photonic crystals

2020 ◽  
Vol 4 (8) ◽  
pp. 2409-2417
Author(s):  
Mengfan Wu ◽  
Chuyan Zhang ◽  
Fujing Wei ◽  
Huifang An ◽  
Xiaqing Wang ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Self Assembly ◽  
Large Scale ◽  
The Self ◽  
Colloidal Photonic Crystals ◽  
Large Scale Preparation ◽  
Scale Preparation ◽  
First Time

This is the first time that a hydrogel interface has been used as an assembly interface for the self-assembly of photonic crystals with excellent performances.

Large-scale photonic crystals with inserted defects and their optical properties

2014 ◽  
Vol 23 (8) ◽  
pp. 088114
Author(s):  
Chao-Rong Li ◽  
Juan Li ◽  
Hu Yang ◽  
Yong-Qiang Zhao ◽  
Yan Wu ◽  
...  
Keyword(s):  
Optical Properties ◽  
Photonic Crystals ◽  
Large Scale

scholarly journals Generation of intensity-tunable structural color from helical photonic crystals for full color reflective-type display

2018 ◽  
Vol 26 (10) ◽  
pp. 13561 ◽  
Author(s):  
Se-Um Kim ◽  
Sin-Hyung Lee ◽  
In-Ho Lee ◽  
Bo-Yeon Lee ◽  
Jun-Hee Na ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Structural Color ◽  
Full Color

Three dimensional silicon photonic crystals fabricated by two photon phase mask lithography

2009 ◽  
Vol 94 (1) ◽  
pp. 011101 ◽  
Author(s):  
D. Shir ◽  
E. C. Nelson ◽  
Y. C. Chen ◽  
A. Brzezinski ◽  
H. Liao ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Three Dimensional ◽  
Phase Mask ◽  
Two Photon ◽  
Silicon Photonic
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