Direct spectroscopy of the ${}^2$S${}_{1/2}{-}^2$P${}_{1/2}$ and ${}^2$D${}_{3/2}{-}^2$P${}_{1/2}$ transitions and observation of micromotion modulated spectra in trapped \Ca

Abstract

We present an experimental scheme to perform spectroscopy of the ${}^2$S${}_{1/2}{-}^2$P${}_{1/2}$ and ${}^2$D${}_{3/2}{-}^2$P${}_{1/2}$ transitions in \Ca. By rapidly switching lasers between both transitions, we circumvent the complications of both dark resonances and Doppler heating. We apply this method to directly observe the micromotion modulated fluorescence spectra of both transitions and measure the dependence of the micromotion modulation index on the trap frequency. With a measurement time of 10 minutes, we can detect the center frequencies of both dipole transitions with a precision on the order of 200 kHz even in the presence of strong micromotion.

References in corpus (6)

• Observation of the 1S0 - 3P0 clock transition in 27Al+
• Absolute frequency measurement of the 40Ca+ S1/2 - D5/2 clock transition
• Local Detection of Quantum Correlations with a Single Trapped Ion
• Frequency Metrology on single trapped ions in the weak binding limit: The 3s1/2-3p3/2 transition in 24-Mg+
• Direct frequency comb spectroscopy of trapped ions
• Frequency metrology on the 4s 2S1/2 - 4p 2P1/2 transition in the calcium ion for a comparison with quasar data

Cited by in corpus (5)

• Precise determination of micromotion for trapped-ion optical clocks
• Precision isotope shift measurements in Ca${}^{+}$ using highly sensitive detection schemes
• Compact FPGA-based pulse-sequencer and radio-frequency generator for experiments with trapped atoms
• Laser Cooling of Radium Ions
• Single-shot energy measurement of a single atom and the direct reconstruction of its energy distribution