Pulsed laser deposition of PbTe under monopulse and multipulse regime

Alvira, Fernando; Ponce, L.; Mendoza, Y. Peñaloza; Ricci, María Luz Martínez; Videla, Fabiàn

doi:10.1016/j.optlaseng.2016.11.002

Cited by 11 publications

(2 citation statements)

References 22 publications

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“…By another way at 1064 nm with less energetic plasma, the same thermal treatment induced a transition to the anatase-brookite phase. Following our previously published analyses, it is possible to assume that the plasma was re-excited in the multi-pulse regime in the ablation process, i.e., this plasma is more energetic than that generated in the single-pulse regime, thus creating adatoms with higher energy, this could be a plausible explanation of the transition to the rutile phase with thermal treatment in the sample grown using multi-pulses [9,19].…”

Section: Resultsmentioning

confidence: 99%

Influence of laser pulse regime on the structure and optical properties of TiO₂ nanolayers

Peñaloza-Mendoza¹,

Alvira²,

Caballero‐Briones³

et al. 2018

Mater. Res. Express

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TiO 2 films were deposited onto glass substrates by pulsed laser deposition (PLD) in high vacuum under monopulse and multipulse excitation. After deposition, a thermal treatment on air atmosphere was done to promote crystallization. Films were studied by x-ray diffraction, energy dispersive spectroscopy, scanning electron, atomic force microscopy, UV-vis spectroscopy, and ellipsometry. After air annealing, films gain a different amount of oxygen: TiO 1.9 in multipulse regime versus TiO 1.7 in the monopulse one. Splashing is observed in both regimes although in the multipulse mode greater particles are found, that derived in a less compact film after annealing which could be the cause of the better oxygen diffusion. The optical band gap of the film prepared with monopulse excitation is 3.09 eV. This value increased to 3.34 eV with annealing, corresponding to that of anatase. The film made with multipulses has an E g =3.12 eV which was invariant upon annealing. The difference in the properties of the films grown in the different regimes was attributed to the re-excitation of the plasma during the ablation process in the multipulse ablation that leads to an increased splashing density and thereafter a less compact film and the presence of off-stoichiometry inclusions within the film bulk.

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Section: Resultsmentioning

confidence: 99%

Influence of laser pulse regime on the structure and optical properties of TiO₂ nanolayers

Peñaloza-Mendoza¹,

Alvira²,

Caballero‐Briones³

et al. 2018

Mater. Res. Express

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“…The third approach is to insert a Q-switch device based on saturable absorbers in the laser resonant cavity to generate multiple pulses. 19,20) Although this method can conveniently output two pulses in a collinear manner, the time interval of the pulses is relatively fixed, and it is not easy to adjust again.…”

mentioning

confidence: 99%

Research on collinear double pulse generation method of electro-optical Q-switched Nd:YAG laser

Dai¹,

He²,

Wang³

et al. 2023

Appl. Phys. Express

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This letter introduces the collinear double-pulse generation method of the electro-optical Q-switched Nd:YAG laser and the rate equations describing its pulse formation dynamics. The two pulses share the same resonator and thus have a natural and highly coaxial characteristic. The effect of the voltage applied on the electro-optic crystal on the pulse energy and temporal waveform was studied. The time interval of the double-pulse laser can be tuned from 80 ns to 10 μs, thus satisfying the needs of a general double-pulse laser. This method is ideal for obtaining a collinear double-pulse laser and can be extended to other lasers.

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Nonlinear Elastic, Ultrasonic and Thermophysical Properties of Lead Telluride

Tripathi

Agarwal²,

Singh

2019

Int J Thermophys

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Pulsed laser deposition of PbTe under monopulse and multipulse regime

Cited by 11 publications

References 22 publications

Influence of laser pulse regime on the structure and optical properties of TiO₂ nanolayers

Influence of laser pulse regime on the structure and optical properties of TiO₂ nanolayers

Research on collinear double pulse generation method of electro-optical Q-switched Nd:YAG laser

Nonlinear Elastic, Ultrasonic and Thermophysical Properties of Lead Telluride

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Pulsed laser deposition of PbTe under monopulse and multipulse regime

Cited by 11 publications

References 22 publications

Influence of laser pulse regime on the structure and optical properties of TiO2 nanolayers

Influence of laser pulse regime on the structure and optical properties of TiO2 nanolayers

Research on collinear double pulse generation method of electro-optical Q-switched Nd:YAG laser

Nonlinear Elastic, Ultrasonic and Thermophysical Properties of Lead Telluride

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Product

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Influence of laser pulse regime on the structure and optical properties of TiO₂ nanolayers

Influence of laser pulse regime on the structure and optical properties of TiO₂ nanolayers