Ultrafast Z-scan measurements of nonlinear optical constants of window materials at 772, 1030, and 1550  nm

Flom, Steven R.; Beadie, G.; Bayya, Shyam; Shaw, Brandon; Auxier, Jason M.

doi:10.1364/ao.54.00f123

Cited by 29 publications

(5 citation statements)

References 11 publications

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“…To perform the calculations we assumed that for all samples analyzed n 0 could be well approximated by the value of refractive index of fused silica measured at 1.030 μm, n 0 = n silica =1.45. It is also noteworthy that the value of the non‐linear refractive index obtained for the reference sample S0 agrees well with that reported recently for pure fused silica, determined using the Z‐scan method at 1.030 μm.…”

Section: Resultssupporting

confidence: 90%

A Seedless Method for Gold Nanoparticle Growth inside a Silica Matrix: Fabrication of Materials Capable of Third‐Harmonic Generation in the Near‐Infrared

et al. 2019

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A composite in which gold nanoparticles (AuNPs) approximately 10 nm in size are embedded in amorphous transparent silica matrix has been produced. The synthetic protocol uses HAuCl4 as the Au ion source, tetraethoxysilane (TEOS) as the SiO2 precursor, and l‐ascorbic acid (AA) as the reducing agent. AA is employed before the sol‐gel process in an amount sufficient only for reduction of Au3+ ions to Au+. By using a cationic surfactant, benzylcetyldimethylammonium chloride hydrate (BDAC) and/or cetyltrimethylammonium bromide (CTAB), the Au+ ions are encapsulated within metalomicelles, which prevents them from being reduced to Au0 and enables their homogeneous distribution in the gel. Reduction of Au+ to Au0 and the growth of the AuNPs occurs at room temperature during the gelation, and arises from the release of EtOH during the hydrolysis of TEOS. The composites contain 0.027 wt % of Au. They exhibit nonlinear optical behavior characterized by the third‐order nonlinear refraction index, n2, in the range 3.6–5.7×10−16 cm2 W−1 at λ=1.030 μm. The composites are capable of effective third‐harmonic generation of ultrashort near‐IR (210 fs, 1.030 μm) laser pulse through a direct third‐order mechanism.

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Section: Resultssupporting

confidence: 90%

A Seedless Method for Gold Nanoparticle Growth inside a Silica Matrix: Fabrication of Materials Capable of Third‐Harmonic Generation in the Near‐Infrared

et al. 2019

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“…Consequently, this cohesive dataset stands as a potent resource for validating theoretical models in subsequent research endeavors. [25]; Bristow [26]; DeSalvo [27]; Ensley [23]; Flom [28]; Jansonas [29]; Hurlbut [30]; Lin [31]; Milam [32]; Patwardhan [33]; Pigeon [34]; Sheik-Bahae [35]; Werner [36].…”

Section: Discussionmentioning

confidence: 99%

“…8) Comparison of 𝑛 2 values obtained in this work at 9.2 µm with literature data for different wavelengths included in refractiveindex.info database. Data from following publications are used: Adair[25]; Bristow[26]; DeSalvo[27]; Ensley[23]; Flom[28]; Jansonas[29]; Hurlbut[30]; Lin[31]; Milam[32]; Patwardhan[33]; Pigeon[34]; Sheik-Bahae[35]; Werner[36].…”

mentioning

confidence: 99%

Nonlinear refraction and absorption properties of optical materials for high-peak-power long-wave-infrared lasers

Polyanskiy,

Pogorelsky,

Babzien

et al. 2023

Preprint

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Optical materials transparent in the CO₂ laser wavelength range have been evaluated regarding their suitability for components in ultrashort-pulse (≤ a few ps), high-peak-power (≥ a few TW) long-wave infrared (LWIR) lasers. We provide values for the nonlinear refractive index (n₂) for seventeen materials, and thresholds for nonlinear absorption for eleven materials. Characterizations were performed using a 2 ps laser pulse at λ = 9.2 μm. This paper methodically presents the newly acquired data in conjunction with existing literature on linear optical properties, establishing it as a comprehensive reference for designing high-peak-power LWIR laser systems.

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“…With the wide application of high-power, high-intensity, and short-pulse lasers in industrial and military fields, the related optical limiting and protection materials have also begun to flourish. In particular, optical limiting materials, including phase change materials, and linear and nonlinear optical limiting (NOL) materials [1] , have been the focus of research for many years [2] . Among them, NOL materials have received extensive attention due to their excellent optical effects.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear optical limiting effect of graphene dispersions at 3.8 µm

Peng

et al. 2023

中国光学快报

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We investigate the nonlinear optical limiting effect of novel graphene dispersions and graphene dispersions in carbon tetrachloride at a wavelength of 3.8 μm. The transmittances of graphene dispersions in carbon tetrachloride under two different concentrations (0.004 and 0.008 mg/mL) and two different solution thicknesses (10 and 20 mm) are measured. The influences of concentration and thickness on the optical limiting effect of graphene dispersion are analyzed. Theoretical analysis of the experimental data shows that the main optical limiting mechanism of the new graphene dispersions is Mie scattering. The limiting capacity coefficient of the new graphene dispersion in carbon tetrachloride reaches 0.405 and the minimum transmittance reaches 0.292 when the concentration is 0.004 mg/mL and the thickness is 20 mm. The graphene dispersions in carbon tetrachloride can be used to achieve good nonlinear optical limiting effects at the wavelength of 3.8 μm.

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Ultrafast Z-scan measurements of nonlinear optical constants of window materials at 772, 1030, and 1550 nm

Cited by 29 publications

References 11 publications

A Seedless Method for Gold Nanoparticle Growth inside a Silica Matrix: Fabrication of Materials Capable of Third‐Harmonic Generation in the Near‐Infrared

A Seedless Method for Gold Nanoparticle Growth inside a Silica Matrix: Fabrication of Materials Capable of Third‐Harmonic Generation in the Near‐Infrared

Nonlinear refraction and absorption properties of optical materials for high-peak-power long-wave-infrared lasers

Nonlinear optical limiting effect of graphene dispersions at 3.8 µm

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