Regensburg 2022 – wissenschaftliches Programm
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HL: Fachverband Halbleiterphysik
HL 4: Semiconductor Lasers
HL 4.5: Vortrag
Montag, 5. September 2022, 10:30–10:45, H33
Generalization of the Siegert relation — •Monty Leon Drechsler1, 2, Frederik Lohof1, 2, and Christopher Gies1, 2 — 1Institute for Theoretical Physics, University of Bremen, Bremen, Germany — 2Bremen Center for Computational Materials Science, University of Bremen, Bremen, Germany
The Siegert relation connects the first- and second-order coherence properties of light. While it is valid for thermal light, this relation is routinely extended also to the partially coherent regime of high-β nanolasers, where it aids in the identification of the lasing threshold [1]. We test the validity of this extension by introducing a generalized Siegert relation. Based on the cluster expansion method we derive a full two-time quantum optical theory and combine it with our new approach, allowing us to revise the Siegert relation in different device regimes. We find that correlations lead to deviations from the Siegert relation and in particular highlight the influence correlations related to sub- and superradiance [2].
[1] Kreinberg et al., Laser & Photonics Reviews 14, 2000065 (2020)
[2] Drechsler et al., arXiv:2204.02747v2 (accepted for publication in Appl. Phys. Lett.)