Research Groups

Our team is exploring applications of optical micro- and nano-cavities in the fields of quantum optics with solid-state systems, optical sensing, microscopy, and spectroscopy. more

A careful analysis of the excitation dynamics reveals that excitation is accompanied by a significant ionization probability. We therefore plan to operate the ion trap such that the resulting He++ ions remain stored as signature for successfull excitations. more

Femtosecond laser optical frequency combs have revolutionized the measurement of optical frequencies and enabled optical atomic clocks. The same comb techniques are employed to control the carrier-envelope phase and thus the waveform of ultrafast laser pulses, which has led to the generation of single attosecond pulses. more

Similarly, to the 2S-4P experiment, the purpose of measuring the 1S-3S transition freuquency in atomic hydrogen is to test the theory of Quantum Electrodynamics (QED). more

We are determined to measure a series of transition frequencies between the metastable 2S state, that acts as the ground state here, and the nP levels in atomic hydrogen. more

We are exploring advanced photonics tools, such as optical frequency combs and new techniques from fiber-optical telecommunications, to reach beyond the limits of what has been possible in the past. more

Our group performs experiments on foundations of quantum physics, quantum information and communication. We are located at the LMU University of Munich and at the Max-Planck Institute of Quantum Optics in Garching. more

Frequency combs can be generated with a mode-locked laser that emits a train of laser pulses. One can think of the comb lines as the longitudinal cavity modes of that laser. more

Atomic hydrogen was crucial for the development of quantum mechanics because of its simplicity. Narrowband lasers whose frequency can be precisely tuned to one of the hydrogen lines have been available for about fifty years now. more

Indirect methods, such as the radial velocity method, have been used for the discovery of many exoplanets.The frequency accuracy of a frequency comb is very helpful to achieve this goal. more

We investigate fundamental properties and interactions of light exotic systems, especially muonic atoms such as µH and µD. more