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Regensburg 2016 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 49: Focus Session: Many-body effects in two-dimensional materials (Joint session of HL and O, organized by HL)

HL 49.5: Hauptvortrag

Mittwoch, 9. März 2016, 11:15–11:45, H16

Enhanced light-matter coupling and single-photon emission of atomically thin semiconductors — •Rudolf Bratschitsch — Westfälische Wilhelms-Universität Münster, Münster, Deutschland

Graphene is known as a prototypical two-dimensional material with unique physical properties. However, the difficulty of creating an optical band gap stimulated the search for other monolayer materials. In my talk I will show that atomically thin transition metal dichalcogenides serve as a promising new material class for opto-electronics and quantum optics [1-3]. In particular, I will explain, how gold nanoantennas may be used to increase the light-monolayer coupling and present single-photon emission from localized excitons in monolayer WSe2.

[1] P. Tonndorf et al., Optics Express 21, 4908 (2013)

[2] J. Kern et al., ACS Photonics 2, 1260 (2015)

[3] P. Tonndorf et al., Optica 2, 347 (2015)

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