Nonlinear refractive index of Au nanoparticle suspended in PVA solution was measured using a single beam Z-scan technique. Measurements were carried out using a green CW laser beam operated at 532 nm ...

In this work, a highly sensitive wavelength sensor based on a metal-insulator-metal (MIM) waveguide is presented to increase sensitivity and quality factor by optimizing critical structural factors ...

Gradient refractive index (GRIN) optics represent a transformative approach in optical design whereby the refractive index varies continuously within a material rather than remaining uniform. This ...

Abstract: We designed a highly sensitive refractive index sensor based on geometric phase metasurfaces. The unit of this sensor consists of eight rotated silver cubes, which are placed on a silicon ...

The Hang Seng index has surged by over 22% this year. It is beating its global peers like the Dow Jones and the Nasdaq 100. The index is about to form a golden cross pattern, pointing to more gains.

RIM occurs when the refractive indices of different materials within the light path differ. This discrepancy leads to deviations from the ideal straight-line propagation of light, causing significant ...

In this paper, a novel nano sensor structure is proposed, which consists of a metal-insulator-metal waveguide (MIM) with rectangular baffles and a water droplet cavity with rectangular stubs (WDCRS).

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