Chirp-dependent dual light emission in Na0.95Er0.05Nb0.9Ti0.1O3 perovskite

Pérez-Benito, Óscar; Antón, M. A.; Urones‐Garrote, E.; García-Martín, Susana; García-González, Ester; Weigand, Rudolf

doi:10.1016/j.optmat.2022.112500

Cited by 1 publication

(6 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The intensity is larger at the extremes of the trace, being the spectrum more intense for approximately z = +4 mm than for z = −4 mm. This behavior has been previously explained as being due to quantum interference between the levels involved in the UCF signal [7]. The changes in the shape and intensity of both signals are purely due to the effect of the chirped pulses in the generation of the signals and cannot be attributed to photo-damage.…”

Section: Resultsmentioning

confidence: 65%

“…Figure 5 depicts the SHG signal obtained in BBO and Er 3+ -Ps for different glass insertions, i.e., different chirps in the laser pulses. As reported in [7], the host of the Er 3+ ion generates the SHG signal. It is apparent that the SHG spectra change in intensity and shape with the glass insertion, both in the 3D graphs (Figure 5 Therefore, knowing the temporal characteristics of the laser pulse that produce excitation of the UCF signal is of key importance.…”

Section: Resultsmentioning

confidence: 68%

“…The increase was larger for negatively chirped pulses compared to positively chirped pulses. We demonstrated that this behavior was due to quantum interference effects among several levels of Er 3+ [7].…”

Section: Introductionmentioning

confidence: 80%

“…Er 3+ -doped perovskite synthesis by the hydrothermal method and the corresponding characterization through electron microscopy is described elsewhere, in [7]. The non-centrosymmetric P2 1 ma space group for the Na 0.95 Er 0.05 Nb 0.9 Ti 0.1 O 3 perovskite was determined by X-ray diffraction [7] (See also Appendix A, provided as supplementary material). Notice that the host has to be non-centrosymmetric in order to generate SHG.…”

Section: Methodsmentioning

confidence: 99%

“…Recently we synthesized nano and micrometer-sized particles [7] of an Er 3+ -doped perovskite (Na 0.95 Er 0.05 Nb 0.9 Ti 0.1 O 3 ), which showed a dual emission behavior when excited by ultrashort laser pulses from a single Ti:Sa broadband oscillator. The laser had a broad-band emission from 650 to 1000 nm.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

In-Situ Temporal Characterization of Chirped Ultra-Broadband Laser Pulses Exciting a Dual-Light Emitter Er3+-Doped Perovskite

Pérez-Benito,

Weigand

2023

Photonics

Self Cite

View full text Add to dashboard Cite

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.

show abstract

Section: Resultsmentioning

confidence: 65%

Section: Resultsmentioning

confidence: 68%

Section: Introductionmentioning

confidence: 80%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations