Theoretical investigation of second harmonic efficiency effect on third harmonic conversion efficiency in BBO crystals

Rahman, Sk. Md. Mizanur; Alghoraibi, Ibrahim

doi:10.1016/j.ijleo.2019.163031

Cited by 3 publications

(2 citation statements)

References 26 publications

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“…Although it is possible to get high conversion efficiencies with SHG in crystals, it can be difficult, so this model is sufficient for understanding the nonlinear behavior [34][35][36][37]. At high enough intensities, the pump energy will deplete and the frequency-doubled output will start to diminish and will eventually saturate.…”

Section: Basics Of Nonlinear Optics 21 Backgroundmentioning

confidence: 99%

“…In many cases of THG, a second harmonic is generated via χ (2) which then mixes with the unconverted frequency in another χ (2) interaction (sum-frequency generation), producing the third harmonic, which tends to be more efficient than the χ (3) process by itself. However, both have been used to demonstrate upconversion, as shown in references [37,[41][42][43][44][45][46]. Additionally, there are some important applications of χ (3) processes, such as the generation of frequency combs [17,[47][48][49][50][51][52][53][54][55].…”

Section: Basics Of Nonlinear Optics 21 Backgroundmentioning

confidence: 99%

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Nonlinear nanophotonic devices in the ultraviolet to visible wavelength range

Chen

et al. 2020

Nanophotonics

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AbstractAlthough the first lasers invented operated in the visible, the first on-chip devices were optimized for near-infrared (IR) performance driven by demand in telecommunications. However, as the applications of integrated photonics has broadened, the wavelength demand has as well, and we are now returning to the visible (Vis) and pushing into the ultraviolet (UV). This shift has required innovations in device design and in materials as well as leveraging nonlinear behavior to reach these wavelengths. This review discusses the key nonlinear phenomena that can be used as well as presents several emerging material systems and devices that have reached the UV–Vis wavelength range.

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Section: Basics Of Nonlinear Optics 21 Backgroundmentioning

confidence: 99%

Section: Basics Of Nonlinear Optics 21 Backgroundmentioning

confidence: 99%

Nonlinear nanophotonic devices in the ultraviolet to visible wavelength range

Chen

et al. 2020

Nanophotonics

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Preparation and investigation of cobalt nanoparticles by laser ablation: Structure, linear, and nonlinear optical properties

Dayekh,

Ghadi,

Hussain

2024

Open Engineering

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In this study, cobalt nanoparticles (CoNPs) were prepared by using an Nd–YAG pulsed laser at a wavelength of 1,064 nm and an energy of 800 mJ. From the results of the structural and morphological attributes of CoNP films, it is evident that CoNPs exhibit different spherical configurations with diameters spanning from a few nanometers to 24 nm. The surfaces of these CoNP films indicate that they exhibit a certain degree of homogeneity and uniform vertical heights. Additionally, the results demonstrate an increase in granular size growth and the emptying of cavities on the material’s surface. The absorption curves appeared as a function of the wavelength within the range of 300–1,000 nm and the peak absorption of CoNPs in the ultraviolet radiation region, and the prohibited energy gap for direct transitions was known, and the value is 4 eV, while the nonlinear optical properties showed that the particles show a nonlinear refractive index (self-defocusing) and a nonlinear absorption cobalt coefficient with the absorption of two photons; thus, the CoNPs possess good nonlinear properties and can be used in nonlinear optical photonic device, optical power limiter, and a wide range of nonlinear applications.

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Nonlinear nanophotonic devices in the Ultraviolet to Visible wavelength range

Chen

et al. 2020

Preprint

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Theoretical investigation of second harmonic efficiency effect on third harmonic conversion efficiency in BBO crystals

Cited by 3 publications

References 26 publications

Nonlinear nanophotonic devices in the ultraviolet to visible wavelength range

Nonlinear nanophotonic devices in the ultraviolet to visible wavelength range

Preparation and investigation of cobalt nanoparticles by laser ablation: Structure, linear, and nonlinear optical properties

Nonlinear nanophotonic devices in the Ultraviolet to Visible wavelength range

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