Enhanced frequency up-conversion in Rb vapor
arXiv:0911.0812 · doi:10.1364/OE.18.017020
Abstract
We demonstrate highly efficient generation of coherent 420nm light via up-conversion of near-infrared lasers in a hot rubidium vapor cell. By optimizing pump polarizations and frequencies we achieve a single-pass conversion efficiency of 260% per Watt, significantly higher than in previous experiments. A full exploration of the coherent light generation and fluorescence as a function of both pump frequencies reveals that coherent blue light is generated close to 85Rb two-photon resonances, as predicted by theory, but at high vapor pressure is suppressed in spectral regions that do not support phase matching or exhibit single-photon Kerr refraction. Favorable scaling of our current 1mW blue beam power with additional pump power is predicted.
6 pages, 4 figures. Modified to include referees' improvements
References in corpus (5)
- Absolute absorption on the rubidium D lines: comparison between theory and experiment
- Collimated blue light generated by four-wave mixing in Rb vapour
- Coherent 455nm beam production in cesium vapor
- Phase-dependent light propagation in atomic vapors
- Magneto-optical trapping and background-free imaging for atoms near nanostructured surfaces
Cited by in corpus (37)
- Trans-spectral orbital angular momentum transfer via four wave mixing in Rb vapor
- ElecSus: A program to calculate the electric susceptibility of an atomic ensemble
- Collimated blue light generated by four-wave mixing in Rb vapour
- Absolute absorption on rubidium D1 line: including resonant dipole-dipole interactions
- ElecSus: Extension to arbitrary geometry magneto-optics
- Collimated Blue and Infrared Beams Generated by Two-Photon Excitation in Rb Vapor
- Directional infrared emission resulting from cascade population inversion and four-wave mixing in Rb vapours
- Spiral bandwidth of four-wave mixing in Rb vapour
- Distinguishing nonlinear processes in atomic media via orbital angular momentum transfer
- High Helicity Vortex Conversion in a Rubidium Vapor
- Gouy phase-matched angular and radial mode conversion in four-wave mixing
- Optical parametric oscillation with distributed feedback in cold atoms
- Parametric four-wave mixing using a single cw laser
- Cavity-enhanced frequency up-conversion in rubidium vapour
- Parametric wave mixing enhanced by velocity insensitive two-photon excitation in Rb vapour
- Autler-Townes splitting via frequency upconversion at ultra-low power levels in cold Rb atoms using an optical nanofiber
- Active narrowband filtering, line narrowing and gain using ladder electromagnetically induced transparency in an optically thick atomic vapour
- Measuring the Stokes parameters for light transmitted by a high-density rubidium vapour in large magnetic fields
- Frequency evaluation of collimated blue light generated by wave mixing in Rb vapour
- Doppler-free two-photon resonances for atom detection and sum frequency stabilization
- Collimated UV light generation by two-photon excitation to a Rydberg state in Rb vapor
- Amplified spontaneous emission at 5.23 um in two-photon excited Rb vapour
- Polychromatic, continuous-wave mirrorless lasing from monochromatic pumping of cesium vapor
- Optical cavity for enhanced parametric four-wave mixing in rubidium
- Comparison of collimated blue light generation in Rb atoms via the D and D lines
- An analytical model of Faraday rotation in hot alkali metal vapours
- Directional THz generation in hot Rb vapor excited to a Rydberg state
- Intensity-correlated spiking infrared and ultraviolet emission from sodium vapors
- Linewidth of collimated wavelength-converted emission in Rb vapours
- Spiking dynamics of frequency up-converted field generated in continuous-wave excited rubidium vapours
- Phase matching alters spatial multiphoton processes in dense atomic ensembles
- Telecom-wavelength spectra of a Rydberg state in a hot vapor
- Saturation and alternate pathways in four-wave mixing in rubidium
- Dynamic Stark shift in a Doppler-broadened four-wave mixing
- Characterization of near-infrared to telecom frequency conversion in a rubidium-filled hollow-core photonic-crystal fiber
- Spontaneous and parametric processes in warm rubidium vapours
- Polychromatic forward-directed sub-Doppler emission from sodium vapour