Tag: Ultraviolet
Light pulses induce near-perfect valley polarization in graphene
What the study found The study reports that a dual-frequency light pulse can induce highly valley polarized states in graphene, a gapless monolayer material in the Xene family. The authors say the result is a near-perfect valley polarized excitation. Why the authors say this matters The authors conclude that this offers a route to lightwave…
NUV-blue spirals show star-forming outer disks
—
in AstronomyStudy reveals why optically red spiral galaxies show ultraviolet-blue colors: quenched centers with active outer disks sustained by fresh gas accretion or galaxy interactions.
