We use laser-induced fluorescence enhanced by a cycling transition to image metastable
helium molecules in liquid helium-4. We demonstrate that the method achieves sufficient …

Ionizing radiation events in superfluid helium result in the copious production of metastable
He 2 molecules which have a 13 s radiative lifetime in liquid helium. In this thesis, we …

We describe an approach to detecting ionizing radiation that combines the special
properties of superfluid helium with the sensitivity of quantum optics techniques. Ionization in …

Ionizing radiation events in liquid helium result in the copious production of long-lived He 2
triplet molecules (τ= 13 s). We present results on the detection and imaging of these …

Ionization events in superfluid helium result in the copius production of metastable He2
molecules with lifetimes of roughly 10 seconds. Because of these extremely long lifetimes …

We present results on the detection and imaging of He 2 triplet molecules in superfluid
helium using laser induced fluorescence. A two photon transition at 905 nm results in the …

We present new results on the detection and imaging of He 2 triplet molecules in superfluid
helium using laser-induced fluorescence. A two photon transition at 905 nm results in the …

Metastable helium molecules generated in a discharge near a sharp tungsten tip operated
in either pulsed mode or continuous field-emission mode in superfluid liquid $^{4} $ He are …

Metastable helium molecules generated in a discharge near a sharp tungsten tip immersed
in superfluid He 4 are imaged using a laser-induced-fluorescence technique. By pulsing the …