Nonlinear Optics in Perovskite Materials

A special issue of Photonics (ISSN 2304-6732).

Deadline for manuscript submissions: closed (30 June 2023) | Viewed by 1595

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School of Physics and Electronics Engineering, Shenzhen University, Shenzhen 518060, China
Interests: chiral optics; ultrafast spectroscopy; nonlinear optics of semiconductor materials
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Special Issue Information

Dear Colleagues,

Perovskite materials exhibit excellent optical properties. The emergence of these materials has sparked widespread interest in the photonics community. Besides featuring an unprecedented performance for linear light-matter interactions, these materials have been widely recognized as promising nonlinear optical (NLO) materials. The scope of this Special Issue is to present the advances in the NLO properties of these materials, from both theoretical and experimental aspects. In addition, this topic also intends to address the practical applications based on the NLO characteristic of perovskite materials. Particular attention should be paid to the ultrafast dynamics, nonlinear refraction, nonlinear absorption, harmonic generation, stimulated emission, and lasers of the perovskite materials.

Dr. Tingchao He
Guest Editor

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Keywords

  • perovskite materials
  • ultrafast dynamics
  • stimulated emission
  • lasing
  • fiber laser
  • nonlinear refraction
  • nonlinear absorption
  • harmonic generation
  • optoelectronic devices

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Published Papers (1 paper)

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Research

10 pages, 3654 KiB  
Article
In-Situ Temporal Characterization of Chirped Ultra-Broadband Laser Pulses Exciting a Dual-Light Emitter Er3+-Doped Perovskite
by Óscar Pérez-Benito and Rosa Weigand
Photonics 2023, 10(8), 947; https://doi.org/10.3390/photonics10080947 - 18 Aug 2023
Cited by 1 | Viewed by 1093
Abstract
We take advantage of the dual emission properties of up-conversion fluorescence (UCF) and second harmonic generation (SHG) in Er3+-doped perovskite Na0.95Er0.05Nb0.9Ti0.1O3 to fully temporally characterize the ultrashort laser pulse that excites Er [...] Read more.
We take advantage of the dual emission properties of up-conversion fluorescence (UCF) and second harmonic generation (SHG) in Er3+-doped perovskite Na0.95Er0.05Nb0.9Ti0.1O3 to fully temporally characterize the ultrashort laser pulse that excites Er3+-ion fluorescence. The chirped pulses from a broadband Ti:Sa oscillator are temporally characterized using the dispersion scan (d-scan) technique by using the SHG signal in the host perovskite at the same point where UCF is being produced by the same pulse. The pulse durations obtained range from ~45 fs to ~8 fs and positive and negative spectral phases are unambiguously identified. The temporal characterization is compared using a standard non-linear crystal and perfect agreement is obtained. These results show that it is possible to temporally characterize in-situ ultrashort laser pulses while they are inducing a UCF process, as long as the host generates second-harmonic signal. Full article
(This article belongs to the Special Issue Nonlinear Optics in Perovskite Materials)
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