Self-Defocusing of Light in Ethanol Around 1550 nm

Yi, Jun; Miao, Lili; Li, Jie; Qian, Yi; Huang, Jing; Zhao, Chujun

doi:10.1109/jphot.2019.2960392

Cited by 4 publications

(4 citation statements)

References 32 publications

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“…Figures 7A, B show the estimated non-linear refraction of absolute ethanol obtained with a conventional PO and an absorptive HPO at an energy of about 4.5 μJ. The solid line in Figure 7D is the fitting curve with β 0; n 2 4.55 × 10 −19 m 2 /W (Ho and Alfano, 1979;Yi et al, 2020). As it can be seen from Figure 6, the normalized transmittance ΔT measured using this technique with HPO is about 2.5 times higher than that measured using the traditional technique.…”

Section: Resultsmentioning

confidence: 99%

Sensitivity optical non-linear measurement based on wide-band phase objects

Shao

Yang²,

Yang³

et al. 2023

Front. Mater.

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On the basic that the phase object (PO) is the key optical device in the 4f imaging system, a modified high sensitivity optical nonlinear measurement technique with an absorptive homemade phase object (HPO) is reported in order to characterize the value of weak nonlinear refraction material. The absorptive HPO used in this technique is two transparent glass plates on which a liquid film between two pieces of transparent glasses is deposited and added a rotating object at the below HPO to modulate the phase of a PO. The measuring sensitivity can be improved by changing the transmittance of the absorptive HPO. Meanwhile, because the phase retardation of HPO can be continuously adjustable by modulate the rotating object, it makes the sensitivity of measurement at different wavelengths of laser optimal. Results show that the measuring sensitivity is improved 2-4 times compare with the conventional 4f imaging technique. Furthermore, the modified technique can be used to measure the spectrum of nonlinear refraction coefficients of materials at the continuous wavelength. This method further expands the 4f phase coherent imaging measurement technology, not only solves the deficiencies of the conventional phase object, but also improves the accuracy of the measurement. Experiment and theoretical analysis results are presented to validate our technique.

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Section: Resultsmentioning

confidence: 99%

Sensitivity optical non-linear measurement based on wide-band phase objects

Shao

Yang²,

Yang³

et al. 2023

Front. Mater.

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“…), dye molecules, C 60 , and carbon nanotubes. [246][247][248][249] www.advancedsciencenews.com www.ann-phys.org…”

Section: Thermal Lens Effectmentioning

confidence: 99%

Section: Fundamentals Of 2d Material‐based Sspmmentioning

confidence: 99%

Recent Advances in Spatial Self‐Phase Modulation with 2D Materials and its Applications

et al. 2020

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In recent years, spatial self-phase modulation (SSPM) with two-dimensional (2D) materials has attracted the attention of many researchers as an emerging and ubiquitous nonlinear optical effect. In this review, the state of the art of 2D material-based SSPM is summarized. SSPM measures or tunes the nonlinearity of 2D materials, and it is also an effective approach to study the band structure of 2D materials. Several modified forms of SSPM, such as high-order, white-light-excited, vector field excited, and optically nonlinearly enhanced SSPM are also presented. Subsequently, the physical origin of the SSPM formation mechanism is compared and analyzed. Furthermore, the applications of SSPM with 2D materials, including passive photonic devices, generation of Bessel beams, and identifying the mode of the orbital angular momentum, are listed. Finally, several urgent problems of the SSPM with 2D materials, potential applications, and prospects for future development are presented.

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“…The reason for the above discussion about simple and textbook topics in nonlinear optics is directly related to the significance of this article, which was instigated by reported studies of SSPM in molecular liquids and nanomaterials in suspension (refs , and refs therein), using either CW or ML optical sources, the latter generally operating with pulse repetition rates of several MHz. SSPM is a well-known nonlinear optical phenomenon that has been thoroughly studied in a variety of materials since the early 1980s, with pioneering studies carried out in liquid crystals, besides several others. − In a recent publication, we had the opportunity to clarify the role of thermal and nonthermal nonlinearities in ethanol.…”

Section: Introductionmentioning

confidence: 99%

Spatial Self-Phase Modulation of Optical Vortex Beams in Liquid Suspensions of Semiconducting, Semimetallic, and Metallic 2D Nanoflakes due to a Kerr-like Nonlinearity

Campos,

Bautista,

Amaral

et al. 2024

J. Phys. Chem. C

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Optical vortex beam (OVB) propagation through liquid suspensions of semiconducting, semimetallic, and metallic 2D nanoflakes, MoS 2 , NbS 2 , and WTe 2 , respectively, was studied under different excitation conditions regarding the optical absorption region. It is demonstrated that the OVB generated using a spatial light modulator propagates under intensitydependent refraction originating from thermal nonlinearity. Besides the nanomaterial's suspensions, measurements were also performed with pristine solvents to corroborate the thermally induced intensity dependence arising from light absorption in the studied media.

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Self-Defocusing of Light in Ethanol Around 1550 nm

Cited by 4 publications

References 32 publications

Sensitivity optical non-linear measurement based on wide-band phase objects

Sensitivity optical non-linear measurement based on wide-band phase objects

Recent Advances in Spatial Self‐Phase Modulation with 2D Materials and its Applications

Spatial Self-Phase Modulation of Optical Vortex Beams in Liquid Suspensions of Semiconducting, Semimetallic, and Metallic 2D Nanoflakes due to a Kerr-like Nonlinearity

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