Xiao, ShuminGu, Z. et al. Two-photon pumped lead halide perovskite nanowire lasers. Preprint at http://arXiv.org/abs/1510.03987v1 (2015).Gu, Z. et al. Two-photon pumped lead halide perovskite nanowire lasers. arXiv preprint (2015). arXiv:1510.03987v1...
Associated with an Sn‐component dependent band gap, a CH3NH3Pb0.75Sn0.25I3 perovskite thin film is fabricated, whose nonlinear two‐photon absorption can expand the optical response up to 1.8 μm. Two‐photon absorption is studied and a very large absorption coefficient of 1.15 cm kW?1 is ...
Perovskite nanocrystals(NCs) with high two-photon absorption(TPA) cross-section are of great interest due to their potential applications in three-dimensional optical data storage and multiphoton fluorescence microscopy. Among various perovskite materials, FAPbBr_3 NCs show a better development prospect ...
Herein, the two-photon absorption (TPA) properties of 2D perovskite phenylethylamine lead iodide ((PEA)2PbI4) are systematically studied. The 2D perovskite exhibits a giant TPA and saturation effect under excitation of 800 nm femtosecond laser. The TPA coefficient of a (PEA)2PbI4 flake is ...
Second harmonic generation and two-photon absorption have been successfully demonstrated. However, perovskite devices based on these nonlinear properties, such as micro- and nanolasers have thus far not been fabricated. Here we demonstrate two-photon pumped microlasers from CH3NH3PbBr3 perovskite ...
Three-photon absorption was also evidenced below the threshold for 2PA in CsPbBr323. In this work, we have recorded the 2PA spectrum of methylammonium lead iodide perovskite (CH3NH3PbI3) polycrystalline thin films using the time-resolved microwave conductivity (TRMC) technique, as well as CH3...
6. W. Chen et al. (2017). Giant five-photon absorption from multidimensional core-shell halide perovskite colloidal nanocrystals. Nat Commun, Vol. 8, Article No. 15198,www.doi.org/10.1038/ncomms15198. 7. V. Nikolenko et al. (2010). A portable laser photostimulation and imaging microscope...
Fig. 2: Measurement of two-photon photoluminescence of hybrid organic–inorganic perovskite crystals. aSchematic of the experimental set-up in which the spectrally tunable output of an optical parametric oscillator (OPO) seeded by the combination of an Nd:YAG Q-switched laser and third-harmonic gen...
We have investigated the photon-energy dependence of nonlinear optical absorption in graphene in the near infrared (NIR) and visible range (1.13 – 3.1 eV). Two nonlinear processes, namely one-photon interband absorption saturation and two-photon absorption (2PA), have been unambiguously determined...
However, understanding the relevant mechanisms and processes of the dependence of perovskite light emission on temperature and crystal size is still challenging. Herein, the CH 3 NH 3 PbBr 3 monocrystals of different sizes are uniformly excited by two-photon absorption at 800 nm (100 fs, 1 KHz...