95 citations · 132 across the 6 of their papers we have counts for
6 papers
High-power RF amplifier for ultracold atom experiments
Premjith Thekkeppatt, Edwin Baaij, Tijs van Roon +2
We report on the design and characterization of a high-power amplifier with an output power of 36.5 dBm for a frequency range of 50 MHz to 1000 MHz with a total gain of 40 dB. The…
Confinement-induced resonances for the creation of quasi-one-dimensional ultra cold gases of alkali--alkaline-earth dimers
Lorenzo Oghittu, Premjith Thekkeppatt, Nirav P. Mehta +4
We theoretically investigate the role of confinement-induced resonances (CIRs) in low-dimensional ultracold atomic mixtures for the formation of weakly bound dimers. To this end, w…
Measurement of the g factor of ground-state 87Sr at the parts-per-million level using co-trapped ultracold atoms
Premjith Thekkeppatt, Digvijay, Alexander Urech +2
We demonstrate nuclear magnetic resonance of optically trapped ground-state ultracold 87Sr atoms. Using a scheme in which a cloud of ultracold 87Rb is co-trapped nearby, we improve…
Active stabilization of kilogauss magnetic fields to the ppm level for magnetoassociation on ultranarrow Feshbach resonances
Mateusz Borkowski, Lukas Reichsöllner, Premjith Thekkeppatt +4
Feshbach association of ultracold molecules using narrow resonances requires exquisite control of the applied magnetic field. Here we present a magnetic field control system to del…
Hypersonic Bose-Einstein Condensates in Accelerator Rings
Saurabh Pandey, Hector Mas, Giannis Drougakis +5
Some of the most sensitive and precise measurements to date are based on matterwave interferometry with freely falling atomic clouds. Examples include high-precision measurements o…
A self-injection locked DBR laser for laser cooling of beryllium ions
Steven A. King, Tobias Leopold, Premjith Thekkeppatt +1
We present a simple, robust, narrow-linewidth, frequency-doubled semiconductor laser source suitable for laser cooling and repumping of Be ions. A distributed Bragg reflect…