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How does Porosity affect Light speed?

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Porosity plays a significant role in influencing light speed through various mechanisms. Graded porosity in semiconductor nanostructures, as demonstrated in Taiwan, can reduce light reflection by gradually changing the refractive index within the material, enhancing light transmission efficiency . Additionally, porosity affects the reflectance of sandy landscapes, with studies suggesting that porosity variations may impact reflectance responses, albeit to a lesser extent compared to other properties like grain size and shape . Furthermore, the porosity of complex nanostructures, such as porous gold, can influence ultrafast electron transport dynamics, leading to slower relaxation dynamics due to the porous nature impeding energy dissipation . Therefore, porosity's impact on light speed varies depending on the material and structure, with implications for optoelectronic devices and geophysical studies.

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Journal Article•DOI Influence of porosity on high-velocity mass-asymmetric collisions María Belén Planes, Emmanuel N. Millán, Herbert M. Urbassek, Eduardo M. Bringa, Eduardo M. Bringa - Show less +4 more 21 Feb 2020-Monthly Notices of the Royal Astronomical Society 7 Citations	Not addressed in the paper.
Open access•Journal Article•DOI Affect and Porosity: Ethics and Literature between Teresa Brennan and Hélène Cixous Michelle Boulous Walker 11 Oct 2019-Humanities research 4 Citations	Not addressed in the paper.
Open access•Journal Article•DOI Porosity-moderated ultrafast electron transport in Au nanowire networks E. Magoulakis, Athanasia Kostopoulou, Georgios N. Arvanitakis, Antonios G. Kanaras, Antonis N. Andriotis, Alexandros Lappas, Panagiotis A. Loukakos - Show less +6 more 27 Mar 2013-Applied Physics A 8 Citations	Porosity in Au nanowire networks moderates ultrafast electron transport, slowing down relaxation dynamics compared to solid gold films under the same excitation conditions.
Open access•Journal Article•DOI Porosity-induced full-range visible-light photodetection via ultrahigh broadband antireflection in ZnO nanowires Kapil Gupta, Jr-Ting Lin, Ruey-Chi Wang, Chuan-Pu Liu - Show less +3 more 01 Sep 2016-Npg Asia Materials 23 Citations	Porosity in ZnO nanowires reduces light reflection, creating a graded refractive index that enhances visible-light photodetection by allowing light to penetrate deeper into the material.
Proceedings Article•DOI Can porosity affect the hyperspectral signature of sandy landscapes Gladimir V. G. Baranoski, Bradley W. Kimmel - Show less +1 more 05 Oct 2017 2 Citations	Not addressed in the paper.

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