Interaction of Rydberg Excitons in Cuprous Oxide with Phonons and Photons: Optical Linewidth and Polariton Effect

Abstract

We demonstrate that the optical linewidth of Rydberg excitons in Cu2O can be completely explained by scattering with acoustical and optical phonons, whereby the dominant contributions stems from the non-polar optical modes. The consequences for the observation of polariton effects are discussed. We find that an anti-crossing of photon and exciton dispersions exists only for states with main quantum numbers n>28, so polariton effects do not play any role in the experiments reported up to now.

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• Quantum confined Rydberg excitons in Cu${}_2$O nanoparticles
• Nonlinear Optical Properties and Self-Kerr Effect of Rydberg Excitons in Cu${}_2$O
• Green exciton series in cuprous oxide
• Influence of electron-hole plasma on Rydberg excitons in cuprous oxide
• Electro-optical properties of Cu${}_2$O in the regime of Franz-Keldysh oscillations
• Interseries transitions between Rydberg excitons in Cu${}_2$O
• Magneto-Stark-effect of yellow excitons in cuprous oxide
• Excitons in Cu2O -- from Quantum Wells to Bulk Crystals and Additional Boundary Conditions for Rydberg Exciton-Polaritons
• Temperature Study of Rydberg Exciton Optical Properties in Cu2O
• Rydberg Magnetoexcitons in Cu${}_2$O Quantum Wells
• Rydberg excitons in electric and magnetic fields obtained with the complex-coordinate-rotation method
• Copper plasmonics with excitons
• Coherent transfer matrix analysis of the transmission spectra of Rydberg excitons in Cuprous Oxide
• Quantum many-body effects on Rydberg excitons in cuprous oxide
• Semiempirical $\text{ab initio}$ modeling of bound states of deep defects in semiconductor quantum technologies
• Nonlinear optical properties and Kerr nonlinearity of Rydberg excitons in Cu${}_2$O quantum wells
• Wavefunctions and oscillator strengths of Rydberg excitons in cuprous oxide quantum wells