Generation of correlated UV and visible rainbows.
We demonstrate concurrent frequency up-conversion and down-conversion in a quadratic nonlinear medium for the generation of correlated ultraviolet and visible rainbows with one-to-one angular and spectral correspondence, facilitating generation of continuously tunable and photon-momentum-dependent multi-wavelength UV and visible twin photons.
Wu
Guang
G
State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai, P.R. China.
Li
Wenxue
W
Wu
E
E
Zeng
Heping
H
D003116:Color; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007909:Lenses; D008029:Lighting / Q000295:instrumentation*; D055096:Optical Devices; D012031:Refractometry / Q000295:instrumentation*; D014466:Ultraviolet Rays