Optical coherences and wavelength mismatch in ladder systems

Abstract

We investigate experimentally and theoretically the coherent and incoherent processes in open 3-level ladder systems in room temperature gases and identify in which regime electromagnetically induced transparency (EIT) occurs. The peculiarity of this work lies in the unusual situation where the wavelength of the probe field is shorter than that of the coupling field. The nature of the observed spectral features depends considerably on the total response of different velocity classes, the varying Doppler shifts for bichromatic excitation fields, on optical pumping to additional electronic states and transit time effects. All these ingredients can be absorbed in a model based on optical Bloch equations with only five electronic states.

7 pages, 7 figures, published version

References in corpus (9)

• Electromagnetically Induced Transparency and Slow Light with Optomechanics
• Storage and control of optical photons using Rydberg polaritons
• Comparison of Two Independent Sr Optical Clocks with 1e-17 Stability at 10^3 s
• Giant electro-optic effect using polarizable dark states
• Laser frequency stabilization to highly excited state transitions using electromagnetically induced transparency in a cascade system
• Three-photon electromagnetically induced transparency using Rydberg states
• Maximal refraction and superluminal propagation in a gaseous nanolayer
• Slow-light Faraday effect: an atomic probe with gigahertz bandwidth
• Evidence for strong van der Waals-type Rydberg-Rydberg interaction in thermal vapor

Cited by in corpus (17)

• Assessment of Rydberg Atoms for Wideband Electric Field Sensing
• Strongly correlated growth of Rydberg aggregates in a vapor cell
• Charge-induced optical bistability in thermal Rydberg vapor
• Self-induced transparency in warm and strongly interacting Rydberg gases
• Velocity-selective EIT measurement of potassium Rydberg states
• Power narrowing: Counteracting Doppler broadening in two-color transitions
• Hyperfine measurement of $6{\text{P}}_{1/2}$ state in ${}^{87}\text{Rb}$ using double resonance on blue and IR transition
• Wavelength mismatch effect in electromagnetically induced absorption
• Transition frequency measurement of highly excited Rydberg states of 87Rb for a wide range of principal quantum numbers
• Probing an excited-state atomic transition using hyperfine quantum beat spectroscopy
• Inverted Ladder Type Optical Excitation of Potassium Rydberg States with Hot and Cold Ensembles
• EIT spectroscopy of high-lying Rydberg states in ${}^{39}K$
• Spatially resolved spectroscopy of alkali metal vapour diffusing inside hollow-core photonic crystal fibres
• Doppler-Enhanced Quantum Magnetometry with thermal Rydberg atoms
• Autler-Townes spectroscopy of a Rydberg ladder
• Optimizing the Rydberg EIT spectrum in a thermal vapor
• Rydberg electromagnetically induced transparency and absorption of strontium triplet states in a weak microwave field