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. 2022 Oct 5;8(40):eabq7533. doi: 10.1126/sciadv.abq7533

Fig. 2. Strong light-matter coupling regime in LC microcavity with 2D perovskite.

Fig. 2.

(A) Normalized absorption (light green line) and emission (dark green line) spectra of a polycrystalline 2D perovskite based on PEAI, phenylethylammonium iodide. (B and C) Angle-resolved photoluminescence spectra showing the strong-coupling dispersion in H and V polarization at zero voltage (θ=0). White dashed curves indicate calculated bare photon dispersion, and green and magenta curves denote the calculated polariton dispersion (see Materials and Methods). (D) Real no,e and imaginary κo,e parts of the ordinary and extraordinary refractive indices for a thin polycrystaline 2D perovskite layer. (E and F) Berreman simulations corresponding to (B) and (C) (see Materials and Methods).