Photonics Research, Volume. 6, Issue 6, 554(2018)
Ultrafast optical nonlinearity of blue-emitting perovskite nanocrystals
Fig. 1. (a) Normalized linear absorption and fluorescence spectra for the perovskite NCs. The insets are the emission images of the NCs in solution: 1 for
Fig. 2. TA kinetics (a) for
Fig. 3. Measured fluorescence intensity as a function of the input laser intensity at 650 nm. The insets are the two-photon excited emission imaging of the NC solution and the best-fitting straight lines on logarithmic scales: 1 for
Fig. 4. (a) Divided Z-scan results of the OA signal for NCs at a wavelength of 650 nm. The solid lines are the fittings to the data using the Z-scan theory. (b) TPA spectra of NCs between 620 and 720 nm. The concentration of both
Fig. 5. (a) Divided Z-scan results of the CA signal by the OA signal at a wavelength of 650 nm. The solid lines are the fittings to the data using the Z-scan theory. (b) Wavelength-dependent intrinsic nonlinear refractive index of
Fig. 6. Wavelength-dependent figure of merit (
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Junzi Li, Can Ren, Xin Qiu, Xiaodong Lin, Rui Chen, Cheng Yin, Tingchao He, "Ultrafast optical nonlinearity of blue-emitting perovskite nanocrystals," Photonics Res. 6, 554 (2018)
Category: Ultrafast Optics
Received: Jan. 10, 2018
Accepted: Mar. 28, 2018
Published Online: Jul. 2, 2018
The Author Email: Tingchao He (tche@szu.edu.cn)