New paper in Optics Letters: Cooling of traveling acoustic waves from cryogenic temperatures
We expand on our results on Brillouin cooling to reduce the thermal phonon population in waveguides by starting at cryogenic temperatures and reducing the effective mode temperature to 24.3 K. The paper can be found here.
Authors: Lisa Fischer, Laura Blázquez Martínez, Changlong Zhu, Robin…
Herzlichen Glückwunsch and Steven Becker zu zwei herausragenden Forschungspreisen im Jahr 2025!
Im Oktober erhielt Steven den STAEDTLER Foundation Doctoral Award, der herausragende Promotionsarbeiten an der FAU Erlangen-Nürnberg würdigt. Ausgezeichnet wurde er für seine Dissertation zum Thema Optoakustik für photonisches maschinelles Lernen. Mehr Informationen finden Sie hier.
Bereits im…
Harnessing sound waves for photonic computing
Article in the journal “Photonic Integrated Circuits” on our groups work: we explain how the rapid growth of artificial intelligence is driving demand for new technologies that enable faster data processing and lower energy consumption. One promising approach is optical neuromorphic computing. In…
New paper in APL Photonics: Brillouin-enhanced FWM with optical chiral states
We experimentally show Brillouin-enhanced four-wave mixing for optical chiral states in twisted photonic crystal fiber, demonstrating topology-selective cross-frequency information transfer that occurs only when pump and probe have opposite circular polarization. The paper can be found here.
Author…
New paper on the arxiv: Cavity-less Brillouin strong coupling
We experimentally demonstrate strong coupling between optical fields and travelling phonons in a waveguide at 4 K without the need of a cavity. To measure an avoided crossing a novel measurement technique is used. The paper can be found here.
Authors: Laura Blázquez Martínez, Changlong Zhu, and…
New paper in Photonics Research: Frequency conversion of vortex states
Using intervortex FSBS in a twisted PCF we optically excite chiral flexural phonons and demonstrate phonon-mediated frequency conversion between optical vortex modes. The paper can be found here.
Authors: Xingling Zeng, Philip St.J. Russel, and Birgit Stiller
Abstract:
An object or system is said…