Sandra Eibenberger
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View article: High-resolution UV spectroscopy of the chiral molecule 1-phenylethanol
High-resolution UV spectroscopy of the chiral molecule 1-phenylethanol Open
High-resolution UV spectroscopy of the S 1 ← S 0 transition of 1-phenylethanol reveals the rotational energy level structure of the S 1 state.
View article: Near-complete chiral selection in rotational quantum states
Near-complete chiral selection in rotational quantum states Open
Controlling the internal quantum states of chiral molecules for a selected enantiomer has a wide range of fundamental applications from collision and reaction studies, quantum information to precision spectroscopy. Achieving full enantiome…
View article: Full quantum state control of chiral molecules
Full quantum state control of chiral molecules Open
Controlling the internal quantum states of chiral molecules for a selected enantiomer has a wide range of fundamental applications. Using tailored microwave fields, a chosen rotational state can be enriched for a selected enantiomer, even …
View article: The influence of microwave pulse conditions on enantiomer-specific state transfer
The influence of microwave pulse conditions on enantiomer-specific state transfer Open
We report a combined experimental and theoretical study on the influence of microwave pulse durations on enantiomer-specific state transfer. Two triads of rotational states within a chiral molecule (1-indanol) are selected to address the p…
View article: The influence of microwave pulse conditions on enantiomer-specific state transfer
The influence of microwave pulse conditions on enantiomer-specific state transfer Open
We report a combined experimental and theoretical study on the influence of microwave pulse durations on enantiomer-specific state transfer. Two triads of rotational states within a chiral molecule (1-indanol) are selected to address the p…
View article: Quantitative Study of Enantiomer-Specific State Transfer
Quantitative Study of Enantiomer-Specific State Transfer Open
We here report on a quantitative study of Enantiomer-Specific State Transfer (ESST), performed in a pulsed, supersonic molecular beam. The chiral molecule 1-indanol is cooled to low rotational temperatures (1-2 K) and a selected rotational…
View article: MANIPULATION OF COLD CHIRAL MOLECULES USING ELECTRONIC AND ROTATIONAL SPECTROSCOPY
MANIPULATION OF COLD CHIRAL MOLECULES USING ELECTRONIC AND ROTATIONAL SPECTROSCOPY Open
The two non-superimposable mirror images of a chiral molecule are referred to as enantiomers. Their structures cannot be transformed into each other by pure translation or rotation. Even though most physical properties of enantiomers are i…
View article: High-resolution UV spectroscopy of 1-indanol
High-resolution UV spectroscopy of 1-indanol Open
We report on rotationally resolved laser induced fluorescence (LIF) and vibrationally resolved resonance-enhanced multiphoton ionization (REMPI) spectroscopy of the chiral molecule 1-indanol.
View article: A Quantum Ruler for Magnetic Deflectometry
A Quantum Ruler for Magnetic Deflectometry Open
Matter-wave near-field interference can imprint a nano-scale fringe pattern onto a molecular beam, which allows observing its shifts in the presence of even very small external forces. Here we demonstrate quantum interference of the pre-vi…
View article: HIGH RESOLUTION MICROWAVE SPECTROSCOPY IN A CRYOGENIC BUFFER GAS CELL: BRANCHING RATIOS AND REACTIVE INTERMEDIATES IN THE OZONOLYSIS OF ISOPRENE
HIGH RESOLUTION MICROWAVE SPECTROSCOPY IN A CRYOGENIC BUFFER GAS CELL: BRANCHING RATIOS AND REACTIVE INTERMEDIATES IN THE OZONOLYSIS OF ISOPRENE Open
A new method to quantify reaction product ratios using high resolution microwave spectroscopy in a cryogenic buffer gas cell has been developed. We demonstrate its power with product ratio quantification in the ozonolysis of isoprene, \\ce…
View article: The ozonolysis of isoprene in a cryogenic buffer gas cell by high resolution microwave spectroscopy
The ozonolysis of isoprene in a cryogenic buffer gas cell by high resolution microwave spectroscopy Open
A novel approach has been developed for branching ratios analysis, with rapid sampling rate, short reaction times (10 s), and high sensitivity (ppb).
View article: The Molecular Structure of <i>gauche</i>‐1,3‐Butadiene: Experimental Establishment of Non‐planarity
The Molecular Structure of <i>gauche</i>‐1,3‐Butadiene: Experimental Establishment of Non‐planarity Open
The planarity of the second stable conformer of 1,3‐butadiene, the archetypal diene for the Diels–Alder reaction in which a planar conjugated diene and a dienophile combine to form a ring, is not established. The most recent high level cal…
View article: HIGH SENSITIVITY 1-D AND 2-D MICROWAVE SPECTROSCOPY VIA CRYOGENIC BUFFER GAS COOLING
HIGH SENSITIVITY 1-D AND 2-D MICROWAVE SPECTROSCOPY VIA CRYOGENIC BUFFER GAS COOLING Open
All rotationally resolved spectroscopic methods rely on sources of cold molecules. For the last three decades, the workhorse technique for producing highly supersaturated samples of cold molecules has been the pulsed supersonic jet. We pre…
View article: STRUCTURE AND TUNNELING DYNAMICS OF gauche-1,3-BUTADIENE
STRUCTURE AND TUNNELING DYNAMICS OF gauche-1,3-BUTADIENE Open
We have recently shown that textit{gauche}-1,3-butadiene is unambiguously non-planar, with a C$=$C$-$C$=$C dihedral angle of about $34^{circ}$, and readily tunnels between two equivalent textit{gauche} structures.footnote{M.-A. Martin-Drum…
View article: Quantum‐Assisted Metrology of Neutral Vitamins in the Gas Phase
Quantum‐Assisted Metrology of Neutral Vitamins in the Gas Phase Open
It has recently been shown that matter‐wave interferometry can be used to imprint a periodic nanostructure onto a molecular beam, which provides a highly sensitive tool for beam displacement measurements. Herein, we used this feature to me…
View article: Enantiomer-Specific State Transfer of Chiral Molecules
Enantiomer-Specific State Transfer of Chiral Molecules Open
State-selective enantiomeric excess is realized using microwave-driven coherent population transfer. The method selectively promotes either R or S molecules to a higher rotational state by phase-controlled microwave pulses that drive elect…
View article: Matter-wave physics with nanoparticles and biomolecules
Matter-wave physics with nanoparticles and biomolecules Open
These lecture notes emerged from a contribution to the "Les Houches Summer School, Session CVII - Current Trends in Atomic Physics, July 2016". It is meant to serve students as a guide to a selection of topics that are currently at the foc…
View article: Perspectives for quantum interference with biomolecules and biomolecular clusters
Perspectives for quantum interference with biomolecules and biomolecular clusters Open
Modern quantum optics encompasses a wide field of phenomena that are either related to the discrete quantum nature of light, the quantum wave nature of matter or light–matter interactions. We here discuss new perspectives for quantum optic…