Selectively Strong Coupling of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" overflow="scroll"><mml:msub><mml:mrow><mml:mi>Mo</mml:mi><mml:mi mathvariant="normal">S</mml:mi></mml:mrow><mml:mn>2</mml:mn></mml:msub></mml:math> Excitons to a Metamaterial at Room Temperature

Light emitters in the vicinity of a hyperbolic metamaterial (HMM) show range quantum optical phenomena from spontaneous decay-rate enhancement to strong coupling. In this study, we integrate monolayer molybdenum disulfide (${\mathrm{Mo}\mathrm{S}}_{2}$) emitter near-field region HMM. The ${\mathrm{Mo}\mathrm{S}}_{2}$ has $A$ and $B$ excitons, which emit red visible spectrum. We find that excitons couple HMM differently compared excitons. fabricated transforms dispersive medium at 2.14 eV, an elliptical medium. selective coupling modes is attributed inbuilt field gradient transition. exciton energy lies close transition point HMM, relative exciton. So, more functions as coupler. strength calculations 2.5 times stronger for High near large magnitude, in-plane dipole moment result formation hybrid light-matter states. measured differential reflection photoluminescence spectra indicate presence states, i.e., polaritons. Rabi splitting $143.5\phantom{\rule{0.2em}{0ex}}\mathrm{meV}\ifmmode\pm\else\textpm\fi{}14.4$ meV room temperature observed. low-temperature measurement shows mode anticrossing, characteristic feature Our results works energy-selective coupler multiexcitonic systems ${\mathrm{Mo}\mathrm{S}}_{2}$.