Today's optics deals include everything from $80 binoculars (that we actually recommend) to a heavily discounted Schmidt ...

Abstract: Vortex beam carrying orbital angular momentum (OAM) suffers heavily interference from oceanic turbulence (OT) when it is transmitted through underwater wireless optical communication (UWOC) ...

OAM_Fourier_Optics.m: Fourier optics and dyadic Green's function methods for modeling propagation of a vortex beam/wave. Zero padding is employed to avoid aliasing and minimize edge effects. OAM_TC.m: ...

2025 is coming to a close, and with another year of travels comes another batch of winning products that Travel + Leisure editors and readers alike couldn’t stop adding to their shopping carts (and ...

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MATRIX II-MG系列包含4款紧凑、坚固、高性能的傅立叶变换红外气体分析仪。它们应用广泛，可自动、精确、实时测量气体浓度。 MATRIX II-MG系列包含4款紧凑、坚固、高性能的傅立叶变换红外气体分析仪。它们应用广泛，可自动、精确、实时测量气体浓度。 优化的 ...

MPA II-D 是一款为乳品行业设计的高精度质量控制解决方案，能够对各种形态的乳制品进行快速准确的分析，包括生乳、浓缩乳、含微颗粒或糖晶体的乳制品以及固态和半固态乳制品。该仪器配备了LSM系统，可以高效地处理液态样品，同时支持固态和半固态样品的 ...

Lenses Best lenses for sports photography in 2026: telephoto zooms to get closer to the action Lenses The best Nikon Z lenses in 2026: the top buys for your Nikon Z-series mirrorless Lenses The best ...

The Vortex Optics Crossfire HD Binoculars were a staple on travelers shopping lists (and in their hiking packs) this year, and you won’t want to miss out on grabbing a pair of your own while they’re ...

Prepare for your 2026 travels with these shopper-approved accessories. 2025 is coming to a close, and with another year of travels comes another batch of winning products that Travel + Leisure editors ...