Plastic waste has recently been identified as one of the most serious environmental issues, affecting all life forms, natural habitats, and the economy, and is one of the most serious global environmental problems, second only to climate change. Seeking alternative environmentally sustainable options, such as biodegradation instead of conventional disposal, is critical in the face of this challenge. However, there is currently a lack of information about the mechanisms and efficacy of plastic biodegradation. From this perspective, this study aims to illustrate the negative environmental impacts of the plastic waste. It also addresses the role of insects and gut microbiota in the degradation of plastics, emphasizing the important role they will play in the future.
Surface plasmon polariton (SPP) waves generated at the interface of graphene and a gain-assisted medium due to the effective Kerr nonlinear variation of the dielectric function are controlled and modified. The gain doublet in the SPP waves is measured at the interface with collective cross-Kerr nonlinear probe signals which generates Kerr nonlinearity in the SPPs. The alternate normal and anomalous dispersion of SPPs is controlled under Kerr nonlinearity and strength of the control fields, leading to slow and fast SPPs propagation. Further, the propagation length of SPPs is controlled under Kerr nonlinearity and strength of the control fields. The controlled SPPs show significant importance for optical tweezers, radiations guiding, nanophotonics, plasmonster technology, photovoltaic devices, data storage, solar cells and biosensor technology.
In this article we propose a four-level rubidium (Rb87) atomic system for observing interesting features of polarization state rotation in a fast light medium. We investigate spontaneously generated coherence (SGC) for a spinning medium. We show how SGC can affect different spectral profiles of the polarization state and images in this suggested model. We observe a 0.5 radian rotation and 2.5 microsecond time advancement in our proposed system. Our precise results will provide a new platform for researchers in quantum optics due to its applications in image coding, telecommunications and cloaking technology.
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