Dresden 2026 – scientific programme
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O: Fachverband Oberflächenphysik
O 57: Plasmonics and nanooptics: Light-matter interaction, spectroscopy II
O 57.7: Talk
Wednesday, March 11, 2026, 12:15–12:30, HSZ/0403
Vibrationally Induced Resonances in Nanolasers based on Plasmonic Cavities — •Kai Müller1, Kimmo Luoma2, and Christian Schäfer3 — 1Institut für Theoretische Physik, Technische Universität Dresden, D-01062 Dresden, Germany — 2Department of Physics and Astronomy, University of Turku, 20014 Turku, Finland — 3Institute of Applied Physics, TU Wien, Wiedner Hauptstrasse 8-10/134, Vienna, 1040, Austria
Optical circuits and light sources, such as lasers, undergo continuous miniaturization. In recent years, this trend has been taken to its extreme with lasers comprising only a few molecules confined in plasmonic nanocavities. Here, we use a novel method that combines the Bogoliubov-Born-Green-Kirkwood-Yvon (BBGKY) hierarchy with the hierarchical equations of motion (HEOM) to provide theoretical predictions for the quantum dynamics of this few-emitter lasing system. Our approach is informed from first principles and explicitly accounts for the entire vibrational manifold of each molecule in addition to the cavity. We show how the form of the vibrational spectrum influences the lasing process and uncover resonant enhancements in the lasing intensity, which are absent if the coherent drive and vibrational relaxation are combined into the commonly used effective incoherent drive.
Keywords: Lasing; Open quantum many body systems; Non-Markovian open systems; Plasmonic cavity