scholarly journals Material Editing in Complex Scenes by Surface Light Field Manipulation and Reflectance Optimization

2013 ◽  
Vol 32 (2pt2) ◽  
pp. 185-194 ◽  
Author(s):  
Chuong H. Nguyen ◽  
Daniel Scherzer ◽  
Tobias Ritschel ◽  
Hans-Peter Seidel
Keyword(s):  
Light Field ◽  
Complex Scenes ◽  
Material Editing ◽  
Field Manipulation

Multidimensional light field manipulation and applications based on optical metasurface

2021 ◽  
Author(s):  
Tianyue Li ◽  
Boyan Fu ◽  
Jianzheng Ren ◽  
Shuming Wang ◽  
Zhenlin Wang ◽  
...  
Keyword(s):  
Light Field ◽  
Field Manipulation

scholarly journals The influence of material colors on the effective color rendering and temperature through mutual illumination

2020 ◽  
Vol 2020 (28) ◽  
pp. 293-298
Author(s):  
Cehao Yu ◽  
Sylvia Pont
Keyword(s):  
Spectral Properties ◽  
Light Field ◽  
Color Temperature ◽  
Light Fields ◽  
Lighting Technology ◽  
Complex Scenes ◽  
Spatial Geometry ◽  
Color Rendering ◽  
The Impact

In complex scenes, the light reflected by surfaces causes secondary illumination, which contributes significantly to the actual light in the space (the "light field"). Secondary illumination is dependent on the primary illumination, geometry, and materials of a space. Hence, primary illumination and secondary illumination can have non-identical spectral properties, and render object colors differently. Lighting technology and research predominantly relies on the color rendering properties of the illuminant. Little attention has been given to the impact of secondary illumination on the "effective color rendering" within light fields. Here we measure the primary and secondary illumination for a simple spatial geometry and demonstrate empirically their differential "effective color rendering" properties. We found that color distortions due to secondary illumination from chromatic furnishing materials led to systematic and significant color shifts, and major differences between the lamp-specified color rendition and temperature and the actual light-based "effective color rendering" and "effective color temperature". On the basis of these results we propose a methodological switch from assessing the color rendering and temperature of illuminants only to assessing the "effective color rendering and temperature" in context too.

Integrated high-power germanium photodetectors assisted by light field manipulation

2019 ◽  
Vol 44 (13) ◽  
pp. 3338 ◽  
Author(s):  
Yan Zuo ◽  
Yu Yu ◽  
Yu Zhang ◽  
De Zhou ◽  
Xinliang Zhang
Keyword(s):  
High Power ◽  
Light Field ◽  
Field Manipulation

Research on high-resolution imaging technology based on light field manipulation for a lenslet-based plenoptic camera

2018 ◽  
Vol 57 (33) ◽  
pp. 9877 ◽  
Author(s):  
Xincheng Liu ◽  
Haotong Ma ◽  
Ge Ren ◽  
Bo Qi ◽  
Zongliang Xie ◽  
...  
Keyword(s):  
High Resolution ◽  
Light Field ◽  
High Resolution Imaging ◽  
Imaging Technology ◽  
Plenoptic Camera ◽  
Resolution Imaging ◽  
Field Manipulation

scholarly journals Ultra-sensitive nanometric flat laser prints for binocular stereoscopic image

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Dejiao Hu ◽  
Hao Li ◽  
Yupeng Zhu ◽  
Yuqiu Lei ◽  
Jing Han ◽  
...  
Keyword(s):  
Light Field ◽  
Electronic Devices ◽  
Transition Metal Dichalcogenides ◽  
Van Der Waals Interactions ◽  
Interfacial Phase ◽  
Anisotropic Thermal Conductivity ◽  
Order Of Magnitude ◽  
Metal Dichalcogenides ◽  
Thick Layers ◽  
Field Manipulation

AbstractTwo-dimensional (2D) transition metal dichalcogenides (TMDs) with tantalizing layer-dependent electronic and optical properties have emerged as a paradigm for integrated flat opto-electronic devices, but their widespread applications are hampered by challenges in deterministic fabrication with demanded shapes and thicknesses, as well as light field manipulation in such atomic-thick layers with negligible thicknesses compared to the wavelength. Here we demonstrate ultra-sensitive light field manipulation in full visible ranges based on MoS2 laser prints exfoliated with nanometric precisions. The nontrivial interfacial phase shifts stemming from the unique dispersion of MoS2 layers integrated on the metallic substrate empower an ultra-sensitive resonance manipulation up to 13.95 nm per MoS2 layer across the entire visible bands, which is up to one-order-of-magnitude larger than their counterparts. The interlayer van der Waals interactions and the anisotropic thermal conductivity of layered MoS2 films endow a laser exfoliation method for on-demand patterning MoS2 with atomic thickness precision and subwavelength feature sizes. With this, nanometric flat color prints and further amplitude-modulated diffractive components for binocular stereoscopic images can be realized in a facile and lithography-free fashion. Our results with demonstrated practicality unlock the potentials of, and pave the way for, widespread applications of emerging 2D flat optics.

Hybrid metal-dielectric nanostructures for advanced light-field manipulation (Conference Presentation)

2017 ◽  
Author(s):  
Isabelle Staude ◽  
Rui Guo ◽  
Evgenia Rusak ◽  
Jason Dominguez ◽  
Manuel Decker ◽  
...  
Keyword(s):  
Light Field ◽  
Field Manipulation

Evidence of Clutter Avoidance in Complex Scenes

2010 ◽  
Author(s):  
Maura C. Lohrenz ◽  
Melissa R. Beck
Keyword(s):  
Complex Scenes
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