Photoluminescence of CH 3NH 3PbCl 3 single crystals under multiphoton excitation is studied. The emission intensity and wavelength, which are related to the phase of the single crystals, are found to be dependent on the operating temperature and pressure. High optical gain (>110 cm −1 @ ≈395 nm) and high absorption coefficient (≈9 × 10 −10 cm 9 GW −5 @ 2400 nm) can also be obtained from the single crystals. With suitable design of the resonant optical amplification, lasing emission at ≈395 nm is demonstrated from the single-crystal microcavities under 2400 nm excitation. Hence, it is verified that CH 3NH 3PbCl 3 single crystals can offer new opportunities for novel nonlinear photonics applications.
- CH NH PbCl single crystals
- multiple-photon absorption
- upconversion lasing emission
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics