Every transaction on a blockchain leaves a trail of data known as on-chain activity. It includes token transfers, wallet movements, gas fees, and the flow of ...

Abstract: A graphene disk metasurface-inspired refractive index sensor (RIS) with a subwavelength structure is numerically investigated to enhance the functionality of flexible metasurface in the ...

However, a new, noninvasive approach could soon be the preferred treatment and even make reading glasses obsolete. The results of a new study were presented on Sunday at the European Society of ...

Abstract: We presented a highly sensitive refractive index (RI) sensor based on a spiral long-period fiber grating (SLPG), which was inscribed near the core region of a single-mode fiber (SMF) by a ...