Hyperspectral z-scan: Measurement of spectrally resolved nonlinear optical properties

Antony, Maria Merin; Sandeep, C. S. Suchand; Murukeshan, Vadakke Matham

doi:10.1016/j.saa.2021.120005

Cited by 7 publications

(5 citation statements)

References 37 publications

(37 reference statements)

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“…The possibilities of the proposed technique can be expanded with the involvement of nondegenerate phase modulation when the pump and probe radiation differ in wavelength. The use of parametric generators of femtosecond radiation will make it possible to study the spectrally dependent nonlinear properties of the samples [ 34 , 35 ] in addition to the utilized spatial degree of freedom.…”

Section: Discussionmentioning

confidence: 99%

Investigation of Nonlinear Optical Properties of Quantum Dots Deposited onto a Sample Glass Using Time-Resolved Inline Digital Holography

et al. 2022

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We report on the application of time-resolved inline digital holography in the study of the nonlinear optical properties of quantum dots deposited onto sample glass. The Fresnel diffraction patterns of the probe pulse due to noncollinear degenerate phase modulation induced by a femtosecond pump pulse were extracted from the set of inline digital holograms and analyzed. The absolute values of the nonlinear refractive index of both the sample glass substrate and the deposited layer of quantum dots were evaluated using the proposed technique. To characterize the inhomogeneous distribution of the samples’ nonlinear optical properties, we proposed plotting an optical nonlinearity map calculated as a local standard deviation of the diffraction pattern intensities induced by noncollinear degenerate phase modulation.

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Section: Discussionmentioning

confidence: 99%

Investigation of Nonlinear Optical Properties of Quantum Dots Deposited onto a Sample Glass Using Time-Resolved Inline Digital Holography

et al. 2022

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“…(e) Packing diagram (left) and dielectric analysis plot (right) of a BTCAM crystal . Reproduced with permission from refs , , , , and . Copyright 2021 American Chemical Society, Copyright 2021 Elsevier, Copyright 2022 Elsevier, Copyright 2020 Elsevier, and Copyright 2020 Elsevier, respectively.…”

Section: Characterization Methodsmentioning

confidence: 99%

“…(a) SHG responses of Ca 3 (TeO 3 ) 2 (MO 4 ) (M = Mo, W) at 1064 nm and at 2.09 μm (I) and SHG weighted electron densities in VE process of d 14 in Ca 3 (TeO 3 ) 2 (MoO 4 ) (II) . (b) Schematic diagram of the Z -scan measurement . (c) Z -scan measurement when the aperture is open (left), closed (middle), and ratio (right) for a 4-dimethylamino-4′-nitrobiphenyl crystal .…”

Section: Characterization Methodsmentioning

confidence: 99%

“…When the sample is translated along the focused beam, the sample encounters different intensities at different Z positions. The intensity value of each Z position can be calculated precisely from focusing geometry . An example of Z -scan measurements in different aperture modes is depicted in Figure c.…”

Section: Characterization Methodsmentioning

confidence: 99%

“…The intensity value of each Z position can be calculated precisely from focusing geometry. 66 An example of Z-scan measurements in different aperture modes is depicted in Figure 6c. The open aperture curve pattern describes a strong reverse saturation absorption, while the self-defocusing design was revealed by a closed mode aperture.…”

Section: Z-scan Techniquementioning

confidence: 99%

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