Hudert, Florian, Bruchhausen, Axel, Issenmann, Daniel, Schecker, Olivier, Waitz, Reimar, Erbe, Artur, ...
In this Rapid Communication we report the first time-resolved measurements of confined acoustic phonon modes in free-standing Si membranes excited by fs laser pulses. Pump-probe experiments using...
Hudert, Florian, Bartels, Albrecht, Dekorsy, Thomas, Köhler, Klaus
The doping profile in different n-doped GaAs homoepitaxial structures grown by molecular beam epitaxy is investigated in the time domain by employing a laser based picosecond ultrasound technique in...
Acoustic Vibrations in Nanosized Gold-Shell Particles (2007)
Shan, Xinyan, Zhang, X., Mazurenko, Dmitry A., Blaaderen, Alfons Van, Dijkhuis, Jaap I., Hudert, Florian, ...
We demonstrate and discuss acoustic vibrations in spherical shell particles. The particles consist of 38-nm-thick gold shells, sandwiched between an inner silica core of 456 nm in diameter and an...
Taubert, Richard, Hudert, Florian, Bartels, Albrecht, Merkt, Florian, Habenicht, Anja, Leiderer, Paul, ...
We investigate the impulsively excited acoustic dynamics of nanoscale Au triangles of different sizes and thicknesses on silicon and glass substrates. We employ high-speed asynchronous optical...
Ultrafast time-domain spectroscopy based on high-speed asynchronous optical sampling (2007)
Bartels, Albrecht, Cerna, Roland, Kistner, Caroline, Thoma, Arne, Hudert, Florian, Janke, Christof, ...
High-speed asynchronous optical sampling (ASOPS) is a novel technique for ultrafast time-domain spectroscopy (TDS). It employs two mode-locked femtosecond oscillators operating at a fixed repetition...
A surface phase transition of supported gold nanoparticles (2007)
Plech, Anton, Cerna, Roland, Kotaidis, Vassilios, Hudert, Florian, Bartels, Albrecht, Dekorsy, Thomas
A thermal phase transition has been resolved in gold nanoparticles supported on a surface. By use of asynchronous optical sampling with coupled femtosecond oscillators, the Lamb vibrational modes...
High-speed asynchronous optical sampling for high-sensitivity detection of coherent phonons (2007)
Dekorsy, Thomas, Taubert, Richard, Hudert, Florian, Schrenk, Gerhard, Bartels, Albrecht, Cerna, Roland, ...
A new optical pump-probe technique is implemented for the investigation of coherent acoustic phonon dynamics in the GHz to THz frequency range which is based on two asynchronously linked femtosecond...
Coherent acoustic phonons in nanostructures investigated by asynchronous optical sampling (2006)
Dekorsy, Thomas, Hudert, Florian, Cerna, Roland, Schaefer, Hanjo, Janke, Christof, Bartels, Albrecht, ...
A new optical pump-probe technique is implemented for the investigation of acoustic phonon dynamics in the GHz to THz frequency range which is based on two asynchronously linked femtosecond lasers....
Bartels, Albrecht, Hudert, Florian, Janke, Christof, Dekorsy, Thomas, Köhler, Klaus
We demonstrate a technique for femtosecond time-resolved optical pump-probe spectroscopy that allows to scan over a nanosecond time delay at a kilohertz scan rate without mechanical delay line. Two...