Marcel Drabbels

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Publications associées (53)

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Unusual Rydberg System Consisting of a Positively Charged Helium Nanodroplet with an Orbiting Electron

Marcel Drabbels, Evgeniy Loginov

Evidence is presented of an unusual Rydberg system consisting of a helium nanodroplet containing a positively charged sodium ion and an orbiting electron. Rydberg states of this system with principal quantum number n

American Physical Society2011

Excited State Dynamics of Ag Atoms in Helium Nanodroplets

Marcel Drabbels, Evgeniy Loginov

The excited state dynamics of silver atoms embedded in helium nanodroplets have been investigated by a variety of spectroscopic techniques. The experiments reveal that 5p 2P1/2 ← 5s 2S1/2 excitation of embedded silver atoms results almost exclusively in th ...

2007

Visualizing Nanoscale Dynamics with Time-resolved Electron Microscopy

Marcel Drabbels, Ulrich Lorenz, Pavel Olshin

The large number of interactions in nanoscale systems leads to the emergence of complex behavior. Understanding such complexity requires atomic-resolution observations with a time resolution that is high enough to match the characteristic timescale of the ...

2022

Photoelectron Spectroscopy of Doped Helium Droplets

Marcel Drabbels, Evgeniy Loginov

The photoionization dynamics of aniline doped helium droplets has been investigated by photoelectron spectroscopy. The photoelectron spectra resemble closely that of gas phase aniline, except for a dropletsize- dependent shift. This shift is caused by lowe ...

2005

Direct measurement of the critical cooling rate for the vitrification of water

Marcel Drabbels, Ulrich Lorenz, Constantin Richard Krüger, Nathan Junior Mowry

The vitrification of aqueous solutions through rapid cooling is a remarkable achievement that launched the field of cryo-electron microscopy (cryo-EM) and has enabled the cryopreservation of biological specimens. For judging the feasibility of a vitrificat ...

2025

Shaped Laser Pulses for Microsecond Time-Resolved Cryo-EM: Outrunning Crystallization during Flash Melting

Marcel Drabbels, Ulrich Lorenz, Constantin Richard Krüger, Nathan Junior Mowry

Water vitrifies if cooled at rates above 3 × 105 K/s. In contrast, when the resulting amorphous ice is flash heated, crystallization occurs even at a more than 10 times higher heating rate, as we have recently shown. This may present an issue for microseco ...

2024

Real-time observation of jumping and spinning nanodroplets

Marcel Drabbels, Ulrich Lorenz, Pavel Olshin, Jonathan Mark Voss

The manipulation of liquids at nanoscale dimensions is a central goal of the emergent nanofluidics field. Such endeavors extend to nanodroplets, which are ubiquitous objects involved in many technological applications. Here, we employ time-resolved electro ...

2020

A Simple Procedure to Extract Speed Distributions from Ion Images with a Large Background Contribution

Marcel Drabbels, Andreas Braun

We present a simple and robust procedure that allows extracting with high fidelity speed distributions from ion images that contain a large background contribution. The procedure requires no detailed knowledge about the background and is conveniently appli ...

2005

Absorption spectroscopy of adenine, 9-methyladenine, and 2-aminopurine in helium nanodroplets

Marcel Drabbels

High-resolution absorption spectra of adenine, 9-methyladenine and 2-aminopurine in helium nanodroplets have been recorded. In contrast to molecular beam experiments, large variations in linewidths are observed for adenine and 9-methyladenine. At the same ...

Royal Society of Chemistry2010

A New Sensitive Detection Scheme for Helium Nanodroplet Isolation Spectroscopy: Application to Benzene

Marcel Drabbels, Evgeniy Loginov, Andreas Braun

A new method is presented for recording excitation spectra of molecules embedded in helium nanodroplets. The method relies on the complete evaporation of the droplets following excitation of an dissolved molecule and the subsequent detection of the remaini ...

Royal Society of Chemistry2008

Flash Melting Amorphous Ice

Marcel Drabbels, Ulrich Lorenz, Gabriele Bongiovanni, Constantin Richard Krüger, Nathan Junior Mowry

Water can be vitrified if it is cooled at high rates, which makes it possible to outrun crystallization in so-called no man’s land, a range of deeply supercooled temperatures where water crystallizes rapidly. Here, we study the reverse process in pure wate ...

2024

Diffraction imaging of light induced dynamics in xenon-doped helium nanodroplets

Marcel Drabbels, Andrew Daniel Bonnar Clark, Verónica Oliver Álvarez de Lara

2022

Sealed Samples for High-resolution, Microsecond Cryo-EM

Wyatt Abbott Curtis, Jakub Wenz, Marcel Drabbels, Ulrich Lorenz, Constantin Richard Krüger, Sarah Victoria Barrass

Oxford University Press (OUP)2025