supported in part by the National Natural Science Foundation of China (Nos.62071487,62201615,62301569,and 62371470)。
Photonic microwave harmonic down-converters (PMHDCs) based on self-oscillation optical frequency combs (OFCs) are interesting because of their broad bandwidth compared with plain optoelectronic oscillators. In this pa...
Project supported by the National Key Technologies R&D Program of China(Grant No.2018YFA0306101);the Scientific Instrument Developing Project of Chinese Academy of Sciences(Grant No.YJKYYQ20170032);the National Natural Science Foundation of China(Grant No.61505196)
Near-infrared single photon sources in telecommunication bands, especially at 1550 nm, are required for long-distance quantum communication. Here a down-conversion quantum interface is implemented, where the single ph...
supported by the National Basic Research Program of China (No. 2013CBA01505);the Science and Technology Commission of Shanghai (No. 15XD1502100)
Back conversion is an intrinsic phenomenon in nonlinear frequency down-conversion processes. However, the physical reason for its occurrence is not well understood. Here, we theoretically reveal that back conversion i...
Parametric down-conversion is a useful method to obtain non-classical state in quantum optics. (1) An analytical solution to the Fokker-Planck equation of non-degenerate optical parametric amplification (NOPA) fo...
The frequency down-conversion of one-dimensional photonic crystals with the coupled cavity structure is investigated by the nonlinear finite-difference time-domain method. The efficient frequency conversion is obtaine...
In this paper, using the arguments of Wu et al. [Phys. Rev. Left. 86 (2001) 2200] we analytically discuss the energy spectra and corresponding eigenstates for the process of κ-photon down-conversion with quantized p...