The third order nonlinear optical characteristics of amorphous vanadium oxide thin film

Kürüm, Ulaş; Öksüzoğlu, Ramis Mustafa; Yüksek, Mustafa; Yağlıoğlu, H. Gül; Çınar, Hakan; Elmalı, Ayhan

doi:10.1007/s00339-011-6496-8

Cited by 11 publications

(8 citation statements)

References 33 publications

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“…The pixels along the grating of the output laser pulse and can be attributed to pulse broadening due to the angular spectral dispersion of the grating, as well as time blurring by the angular crossing of the pump and probe beams. In addition, there are small upward spikes on either side of the TPA valley, which may be related to the two-beam coupling of the chirped pulse due to the nonlinear refractive coefficient of the material [19,20], which was also observed in previous TPA measurements at a wavelength of 515 nm [17]. In addition, after the ultrafast TPA process was completed, the transmittance of ZnSe did not fully recover to the initial value, as can be observed in Fig.…”

Section: Resultssupporting

confidence: 50%

Dual-grating single-shot pump-probe technique

Tianchen,

Yang,

et al. 2024

Preprint

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A simple and effective single-shot pump-probe technique is reported. Using only two commercial gratings, a large time window of ~ 95.58 ps is spatially encoded in a single probe pulse, and single-shot time-resolved measurements are implemented. The time window exceeds the maximum reported values for single-shot pump-probe techniques using the echelon or angle beam encoding strategy. The phase difference problem in the echelon encoding strategies is also eliminated and a customized echelon is not needed in this technique. The measurements of the ultrafast dynamics of ZnSe at a wavelength of 650 nm verify the effectiveness of this technique.

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Section: Resultssupporting

confidence: 50%

Dual-grating single-shot pump-probe technique

Tianchen,

Yang,

et al. 2024

Preprint

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“…Kürüm et al 31 investigated the open‐aperture traces of vanadium oxide (VO x ) thin film at different laser irradiances with 4‐ns and 65‐ps pulse durations, respectively. They argued that in amorphous semiconductors, besides TPA, one‐photon absorption (OPA) can be observed at nonresonant conditions since numerous localized defect states effectively blur the energy gap.…”

Section: Resultsmentioning

confidence: 99%

The third‐order optical nonlinearity of Bi_1.5Zn_1.0Nb_1.5O₇ thin film on quartz by pulsed laser deposition

Yang

Han

Huo

et al. 2012

Physica Status Solidi (a)

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Bi 1.5 Zn 1.0 Nb 1.5 O 7 (BZN) thin films with good surface morphology were prepared on fused quartz substrates by pulsed laser deposition (PLD). The X-ray diffraction (XRD) analysis and atomic force microscope (AFM) surface morphology measurements were performed on the samples. The XRD pattern demonstrated that the films are cubic pyrochlore structure and well crystallized. The AFM analysis indicated that the films have less rough surface. The fundamental optical constants, such as band gap, the wavelength dependence of the transmittance, and the refractive index, were obtained. The sign and magnitude of both real and imaginary parts of third-order nonlinear susceptibility x (3) of the BZN thin films were determined by a single beam Z-scan technique performed at 1064 nm with a picoseconds laser. The third-order nonlinear refractive index coefficient g and the nonlinear absorption coefficient b of the BZN thin films are 4.06 Â 10 À15 m 2 /W and À1.45 Â 10 À9 m/W, respectively. The real part and the imaginary part of the third-order nonlinear susceptibility x (3) of the BZN thin films are 6.03 Â 10 À9 and 1.82 Â 10 À10 esu, respectively. The mechanisms of nonlinear refraction and nonlinear absorption were discussed. The results suggest that BZN thin film exhibit large third-order nonlinear optical properties and be a promising material for applications in nonlinear optical devices.

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“…The pixels along the grating of the output laser pulse and can be attributed to pulse broadening due to the angular spectral dispersion of the grating, as well as time blurring by the angular crossing of the pump and probe beams [22]. In addition, there are small upward spikes on either side of the TPA valley, which may be related to the two-beam coupling of the chirped pulse due to the nonlinear refractive coefficient of the material [24,25], which was also observed in previous TPA measurements at a wavelength of 515 nm [22]. After the ultrafast TPA process was completed, the transmittance of ZnSe did not fully recover to the initial value, as can be observed in Fig.…”

Section: Ultrafast Dynamic Measurements Of Znsementioning

confidence: 99%

Dual-grating single-shot pump-probe technique

Tianchen,

Yang,

et al. 2024

Preprint

View full text Add to dashboard Cite

A simple and effective single-shot pump-probe technique is reported for studying the ultrafast dynamic processes in various materials. Using only two commercial gratings, a large time window of ~ 95.58 ps is spatially encoded in a single probe pulse, and single-shot time-resolved measurements are implemented. This time window exceeds the maximum reported values for single-shot pump-probe techniques using the echelon or angle beam encoding strategy. The phase difference problem in the echelon encoding strategies is also eliminated and a customized echelon is not needed in this technique. The ultrafast dynamic processes of ZnSe and indolium squaraine at a wavelength of 650 nm were investigated using this technique.

show abstract

The third order nonlinear optical characteristics of amorphous vanadium oxide thin film

Cited by 11 publications

References 33 publications

Dual-grating single-shot pump-probe technique

Dual-grating single-shot pump-probe technique

The third‐order optical nonlinearity of Bi_1.5Zn_1.0Nb_1.5O₇ thin film on quartz by pulsed laser deposition

Dual-grating single-shot pump-probe technique

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The third order nonlinear optical characteristics of amorphous vanadium oxide thin film

Cited by 11 publications

References 33 publications

Dual-grating single-shot pump-probe technique

Dual-grating single-shot pump-probe technique

The third‐order optical nonlinearity of Bi1.5Zn1.0Nb1.5O7 thin film on quartz by pulsed laser deposition

Dual-grating single-shot pump-probe technique

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The third‐order optical nonlinearity of Bi_1.5Zn_1.0Nb_1.5O₇ thin film on quartz by pulsed laser deposition