Paper: Applied Physics B


We published a new paper on "New avenues for matter-wave-enhanced spectroscopy" in Applied Physics B!

We present matter-wave interferometry as a tool to advance spectroscopy for a wide class of nanoparticles, clusters and molecules. The high sensitivity of de Broglie interference fringes to external perturbations enables measurements in the limit of an individual particle absorbing only a single photon on average, or even no photon at all. The method allows one to extract structural and electronic information from the loss of the interference contrast. It is minimally invasive and works even for dilute ensembles.

Read the full paper here.

J. Rodewald, P. Haslinger, N. Dörre, B. A. Stickler, A. Shayeghi,
K. Hornberger, M. Arndt
New avenues for matter-wave-enhanced spectroscopy
Applied Physics B 123/3 (2017),
DOI 10.1007/s00340-016-6573-y.

Fig. 3: a) In IR–UV-recoil dip spectroscopy the matter-wave dephasing action of a UV photon is suppressed by emptying the ground state in a resonant IR transition. b) In double resonant IR–UV-recoil spectroscopy the kick of the UV photon is conditioned on the prior absorption of the IR or VIS photon.