Two-color random laser based on a Nd3+ doped crystalline powder

Moura, André L.; Pincheira, Pablo I. R.; Maia, Lauro J. Q.; Gomes, Anderson S. L.; Araújo, Cid B. de

doi:10.1016/j.jlumin.2016.09.002

Cited by 34 publications

(11 citation statements)

References 43 publications

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“…. The lasing observed here shows stability in the number of modes for a range of pump energy, which is an important characteristic for laser-based optical sensors [11], [12]. In addition, the gain saturation was observed for the mode with the lowest threshold.…”

Section: Introductionmentioning

confidence: 55%

Lasing from ZnO nanorods on ITO-coated substrates

Nordin

Priante

Shakfa

et al. 2018

Semiconductor Lasers and Laser Dynamics VIII

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Lasing was observed from ZnO nanorods prepared by a simple method of chemical bath deposition (CBD) on ITOcoated glass substrates. The X-ray diffraction pattern showed a dominant peak for (002) plane typical for good crystalline quality of ZnO grown in the z-direction with a wurtzite structure. Continuous-wave photoluminescence (PL) spectra revealed a peak centered at 380 nm corresponding to the band gap of ZnO. Under pulsed optical pumping, lasing was observed above the nominal PL peak, initially for one mode at 384 nm. Two additional modes at 386 nm and 390 nm was observed when the pumping power is further increased. Threshold was achieved at 0.7 µJ which was 10 times smaller than that reported for powder-based random lasers. In addition, gain pinning was also observed for the dominant mode and the additional two modes appeared upon onset of this gain pining behavior.

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Section: Introductionmentioning

confidence: 55%

Lasing from ZnO nanorods on ITO-coated substrates

Nordin

Priante

Shakfa

et al. 2018

Semiconductor Lasers and Laser Dynamics VIII

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“…Due to the small lasing threshold and large fluorescence efficiency of rare-earth ions hosted in dielectric structures [11,12], RLs based on trivalent neodymium (Nd 3+ ) crystalline powders have become very interesting systems for applications and as test beds of new RL schemes and physical mechanisms [2,[13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Influence of fifth-order nonlinearities on the statistical fluctuations in emission intensities in a photonic open-cavity complex system

et al. 2020

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“…Nd-based RLs have been exploited along with second order optical nonlinearities in the crystal nanopowder host to demonstrate tunability through self second harmonic and sum-frequency generation 19 . They have already found important applications as speckle free sources for imaging 22 and nanothermometers 23 .…”

Section: Introductionmentioning

confidence: 99%

Simultaneous evaluation of intermittency effects, replica symmetry breaking and modes dynamics correlations in a Nd:YAG random laser

Coronel

Silva-Neto

Moura

et al. 2022

Sci Rep

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Random lasers (RLs) are remarkable experimental platforms to advance the understanding of complex systems phenomena, such as the replica-symmetry-breaking (RSB) spin glass phase, dynamics modes correlations, and turbulence. Here we study these three phenomena jointly in a Nd:YAG based RL synthesized for the first time using a spray pyrolysis method. We propose a couple of modified Pearson correlation coefficients that are simultaneously sensitive to the emergence and fading out of photonic intermittency turbulent-like effects, dynamics evolution of modes correlations, and onset of RSB behavior. Our results show how intertwined these phenomena are in RLs, and suggest that they might share some common underlying mechanisms, possibly approached in future theoretical models under a unified treatment.

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Two-color random laser based on a Nd3+ doped crystalline powder

Cited by 34 publications

References 43 publications

Lasing from ZnO nanorods on ITO-coated substrates

Lasing from ZnO nanorods on ITO-coated substrates

Influence of fifth-order nonlinearities on the statistical fluctuations in emission intensities in a photonic open-cavity complex system

Simultaneous evaluation of intermittency effects, replica symmetry breaking and modes dynamics correlations in a Nd:YAG random laser

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