Figure 1

Trap electrode and cavity geometry. (a) Photograph of a substrate ready for wiring. (b) Two identical substrates are inserted between the cavity mirrors such that the ion resides in the cavity mode. (c) A top view of the ion trap inside the cavity. The substrates are separated by 180 $\mu$m and are 1 mm from the mirror. The mirrors are mounted in metal sheaths to provide compensation along the cavity direction. (d) The tapered tip is machined to three individual tines. The outer tines are rf ground and provide compensation fields, while the center tine is rf high.Reuse & Permissions

Figure 2

Electrical characterization of our trap. The secular frequency of the trap is measured for various bias voltages $U_0$ and trap separations. Pluses indicate frequencies along the trap axis, while crosses indicate frequencies along the cavity axis. Solid lines indicate fits to Eq. (1). Electrode separations are (a) $2x_0=130$ $\mu$m, (b) 150 $\mu$m, (c) 170 $\mu$m, and (d) 200 $\mu$m. (e) The voltage efficiency factor from our measurements is compared to numerical simulations.Reuse & Permissions

Figure 3

(a) The experimental system consists of a diode laser at 739 nm that is frequency doubled to drive the atom. The two arms of the 369.5-nm light are combined into a fiber that delivers the cooling and pump light to the ion. The cooling and pump are toggled during the experiment, allowing the pump to vary in intensity while keeping the cooling constant. The cavity is stabilized to the fundamental at 739 nm. A fiber electro-optic phase modulator (EOM) provides tunability of the cavity resonance as well as the necessary frequency offset to ensure coresonance of the beams. (b) A side view schematic along the cavity axis indicating the locations of the cooling and pump beam, the ionization beam, and the repump beam. The ion is imaged from above.Reuse & Permissions

Figure 4

Steady-state photon count rate from the cavity vs cavity detuning for several drive intensities. At intensities that are large compared to the saturation intensity, we observe the onset of a triplet structure. (a) $I/I_{\mathrm{sat}}=2$, (b) $I/I_{\mathrm{sat}}=50$, (c) $I/I_{\mathrm{sat}}=150$, (d) $I/I_{\mathrm{sat}}=600$.Reuse & Permissions

Figure 5

Relevant atomic energy levels for the ${}^{174}{\mathrm{Yb}}^{+}$ ion. The Zeeman levels are shifted by $\pm \hslash {\Delta }_{s,p}$. The pump light is detuned from the bare resonance by ${\delta }_0$, and the cavity detuning is ${\delta }_c={\omega }_c-{\omega }_L$.Reuse & Permissions

Figure 6

Typical fit to our data. The solid curve is a numerical calculation of the steady-state intracavity photon number of our cavity vs cavity detuning ${\delta }_c/2\pi$. Taking into account the Zeeman levels in ${}^{174}{\mathrm{Yb}}^{+}$, we reach qualitative agreement with the observed data.Reuse & Permissions