Description
Infrared radiation is absorbed by molecules if the frequency of the radiation matches the oscillation period of interatomic motions in the molecule. In our lab we study how those absorption features can be modified when the molecule is placed inside an optical resonator where continuous energy exchange between molecule and resonator can occur. We are characterizing those molecule-resonator systems by conventional Fourier-transform infrared (FTIR) spectroscopy and optical infrared frequency combs, which can provide ultimate spectral resolution.
During this project you mainly will perform FTIR measurements on molecules confined in a recently developed flexible Fabry-Pérot resonator. Both the resonance frequencies and the degree of energy confinement can be tuned in the cavity. The goal of the investigation is to study the limits of the tuning range imposed by the coherence of the thermal light source. Furthermore, the student can assist in setting up a fiber-laser based mid-infrared frequency comb which is supposed to overcome the limitations of conventional spectroscopy. Consequently, the project provides insights into the development of modern spectroscopic tools as well as into novel hybrid cavity-molecular samples that become of increasing interest in infrared spectroscopy.
We are looking for a curiosity-driven, highly motivated student who is keen on applying the basic knowledge acquired in undergraduate and possibly graduate courses to state-of-the-art spectroscopy experiments. In order to get started quickly within the short internship time, we would prefer if the applicant has studied physics, chemistry or a related subject for at least two years. Having completed an atomic, molecular and optical physics course or a physical chemistry course in molecular spectroscopy is desirable. The project focuses on experimental work, i.e. the applicant should enjoy spending the majority of work time inside a modern laboratory.
Special Qualifications:
- Studied physics, chemistry or related fields for at least two years
- Completed some advanced courses on atomic, molecular and optical physics
- Ideally already experienced with work in a modern laser laboratory
| Field | A2: Molecular sciences (application oriented) |
|---|---|
| DESY Place | Hamburg |
| DESY Division | FS |
| DESY Group | FS-LA |
