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SKM 2021 - Festkörpertagung Berlin

Twisted and chiral photon states scattered on chiral molecular liquids

Silvia Müllner, Florian Büscher, Dirk Wulferding, Yurii G. Pashkevich, Vladimir Gnezdilov, Anton A. Pechkov, Andrey Surzhykov, and Peter Lemmens  — 1 IPKM, TU Braunschweig, Germany — 2 CCES, Inst. for Basic Science, Seoul, Republic of Korea — 3 O.O. Galkin Donetsk Inst. for PaE, NASU, Kyiv - Kharkiv, Ukraine — 4 B. Verkin Inst. for Low Temp. Phys and Eng., NASU, Kharkiv, Ukraine — 5 Inst. Math. Phys., TU Braunschweig and PTB, Braunschweig, Germany

Twisted light has been recognized as a novel probe of chiral states of matter. The respective light matter coupling is still discussed controversially. Using resonant light-matter coupling of twisted and chiral photon states [1] to chiral molecular liquids we study their inelastic response. For this instance, quasi-elastic Raman scattering (QES) is investigated in isotropic, nematic and chiral nematic phases of liquid crystals. The response is diffusive and dominated by a narrow distribution or single relaxation rate.

[1] H. Rubinsztein-Dunlop, et al., Journ. Opt. 19, 013001 (2017).

We acknowledge important discussions with G. Napoli (Univ. del Salento, Lecce). This research was funded by the DFG Excellence Cluster QuantumFrontiers, EXC 2123, DFG Le967/16-1, DFG-RTG 1952/1, and the Quantum- and Nano-Metrology (QUANOMET) initiative of Lower Saxony within project NL-4.