SKM 2023 – wissenschaftliches Programm
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HL: Fachverband Halbleiterphysik
HL 33: Poster II
HL 33.34: Poster
Mittwoch, 29. März 2023, 17:00–19:00, P1
Fiber-based Open Cavity: a tailored solution for Solid-state Quantum Emitters and their characterization. — •Francesco Salusti1, Lukas Hanschke1, Eva Schöll1, Jonathan Noe2, Manuel Nutz2, Michael Förg2, Thomas Hümmer2, and Klaus D. Jöns1 — 1PhoQS, CeOPP, and Department of Physics, Paderborn University, 33098 Paderborn, Germany — 2Qlibri GmbH, 80337 Munich, Germany and Fakultät für Physik, Ludwig-Maximilians-Universität, 80799 Munich, Germany
For the realization of bright and reliable quantum light emitters, the integration of these emitters into cavity structures represents an elegant solution. However, in many cases, the fabrication of such photonic structure requires remarkable efforts to precisely match the position and the emission wavelength of the emitter with respect to the cavity mode. The required level of control of the materials, size, and positioning makes the realization of a practical cavity resource intensive. Recent works have demonstrated the possibility to take advance of open cavities to easily tailor the cavity around the specifications of individual emitters, such as 2D flakes and quantum dots. In our collaboration between industry and academia, we show that it is possible to take advantage of a fiber-based device to realize a tunable cavity at room and cryogenic temperature. In addition to the advantages of in-situ tuning of an optical resonator to specific emitter resonances, the high finesse of the system enables spatially resolved measurements of the absorption coefficient from oxidized 2D material.