Polarization independent asymmetric light absorption in plasmonic nanostructure

2017 ◽  
Author(s):  
Vitaly F. Rodriguez-Esquerre ◽  
Davi Franco Rego
Keyword(s):  
Light Absorption ◽  
Plasmonic Nanostructure ◽  
Polarization Independent

scholarly journals Nanoplasmonic Pyramidal Metamaterial Absorber at Optical Frequencies

2022 ◽  
Author(s):  
Muhammad Amin ◽  
Saleh Abdullah Basamed ◽  
Ahmed Salem Qniqoon ◽  
Faisal Aied Alshabibi ◽  
Saleh Mohammed Ba Raean ◽  
...  
Keyword(s):  
Light Absorption ◽  
Thermal Imaging ◽  
Resonant Absorption ◽  
Metamaterial Absorber ◽  
Spectral Absorption ◽  
Perfect Absorption ◽  
Wide Range ◽  
Thermal Emitters ◽  
Polarization Independent ◽  
Absorption Characteristics

Abstract A pyramidal shaped metamaterial absorber (PMA) supports broadband and polarization independent resonant absorption at optical frequencies. The PMA is designed by stack of alternative plasmonic/dielectric multilayers. These nanoplasmonic pyramids offers resonant absorption characteristics at wide range of optical frequencies. The optimized PMA structure allows 76% spectral absorption and nearly perfect absorption (over 90%) at several bands between range of 400 nm – 1500 nm wavelength. These light absorption characteristics of PMA are useful for photodetection, thermal imaging, thermal emitters, and solar cells etc.

scholarly journals Broadband polarization-independent resonant light absorption using ultrathin plasmonic super absorbers

2011 ◽  
Vol 2 (1) ◽  
Author(s):  
Koray Aydin ◽  
Vivian E. Ferry ◽  
Ryan M. Briggs ◽  
Harry A. Atwater
Keyword(s):  
Light Absorption ◽  
Polarization Independent

Degradation Analysis and Degradation Suppression Technology Caused by Light Absorption at Active Layer Facet of GaInAsP Laser Diode

2008 ◽  
Vol 128 (5) ◽  
pp. 732-737
Author(s):  
Hiroyuki Ichikawa ◽  
Masashi Ito ◽  
Chie Fukuda ◽  
Kotaro Hamada ◽  
Akira Yamaguchi ◽  
...  
Keyword(s):  
Active Layer ◽  
Laser Diode ◽  
Light Absorption ◽  
Degradation Analysis

Refractive Index Sensors using Polarization-independent Metamaterial

2017 ◽  
Vol 137 (11) ◽  
pp. 415-416 ◽  
Author(s):  
Tomoki Shimizu ◽  
Yoshiaki Kanamori ◽  
Kazuhiro Hane
Keyword(s):  
Refractive Index ◽  
Refractive Index Sensors ◽  
Polarization Independent

Measurement and Visualization of the Contact Pressure Distribution of Rubber Disks and Tires

1995 ◽  
Vol 23 (4) ◽  
pp. 238-255 ◽  
Author(s):  
E. H. Sakai
Keyword(s):  
Pressure Distribution ◽  
Contact Pressure ◽  
Contact Area ◽  
Light Absorption ◽  
Lateral Force ◽  
Contact Pressure Distribution ◽  
High Definition ◽  
The Road ◽  
Close Relationship ◽  
Processing Techniques

Abstract The contact conditions of a tire with the road surface have a close relationship to various properties of the tire and are among the most important characteristics in evaluating the performance of the tire. In this research, a new measurement device was developed that allows the contact stress distribution to be quantified and visualized. The measuring principle of this device is that the light absorption at the interface between an optical prism and an evenly ground or worn rubber surface is a function of contact pressure. The light absorption can be measured at a number of points on the surface to obtain the pressure distribution. Using this device, the contact pressure distribution of a rubber disk loaded against a plate was measured. It was found that the pressure distribution was not flat but varied greatly depending upon the height and diameter of the rubber disk. The variation can be explained by a “spring” effect, a “liquid” effect, and an “edge” effect of the rubber disk. Next, the measurement and image processing techniques were applied to a loaded tire. A very high definition image was obtained that displayed the true contact area, the shape of the area, and the pressure distribution from which irregular wear was easily detected. Finally, the deformation of the contact area and changes in the pressure distribution in the tread rubber block were measured when a lateral force was applied to the loaded tire.

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