Sarah B. Nagel

Using absorption imaging to study ion dynamics in an ultracold neutral plasma

We report optical absorption imaging of ultracold neutral strontium plasmas. The ion absorption spectrum determined from the images is Doppler broadened and thus provides a quantitative measure of the ion kinetic energy. For the particular plasma conditions studied, ions heat rapidly as they equilibrate during the first 250 ns after plasma formation. Equilibration leaves ions on the border between the weakly coupled gaseous and strongly coupled liquid states. On a longer time scale of microseconds, pressure exerted by the trapped electron gas accelerates the ions radially.

Two-photon photoassociative spectroscopy of ultracold 88Sr

We present results from two-photon photoassociative spectroscopy of the least-bound vibrational level of the X

Photoassociative Spectroscopy at Long Range in Ultracold Strontium

^1\Sigma_g^+

Magnetic trapping of metastable 3P2 atomic strontium

state of the

Repumping and spectroscopy of laser-cooled Sr atoms using the (5s5p)3P2–(5s4d)3D2 transition

^{88}

Spectroscopic determination of the s-wave scattering lengths of 86Sr and 88Sr.

Sr

Absorption imaging and spectroscopy of ultracold neutral plasmas

_2

Inelastic and elastic collision rates for triplet states of ultracold strontium

dimer. Measurement of the binding energy allows us to determine the s-wave scattering length,

Ultracold collisions in atomic strontium

a_{88}=-1.4(6) a_0

Spectroscopic Determination of the s-Wave Scattering Lengths of {sup 86}Sr and {sup 88}Sr

. For the intermediate state, we use a bound level on the metastable