Highly twisted M-line of a vortex beam due to the coupling of ultrahigh-order modes

殷澄,; 阚雪芬,; 郭琨,; 王涛,; 许将明,; 韩庆邦,; 吴坚,; 曹庄琪,

doi:10.3788/col202119.071403

Cited by 3 publications

(2 citation statements)

References 7 publications

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“…Figure 1(b) shows the COMSOL simulation electromagnetic field distribution of the HCMW. The standing optical field oscillates rapidly between the coupling layer and substrate layer, which results in many properties such as strong field enhancement and high sensitivity [26] . Because of the symmetrical metal cladding, the incident light can be trapped in the HCMW, which is filled with the low refractive index liquid, so that the light and matter can interact sufficiently.…”

Section: Methodsmentioning

confidence: 99%

Secondary structure changes of ox-LDL by photoirradiation in an optofluidic resonator

Dai

et al. 2022

中国光学快报

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Atherosclerotic cardio-cerebral vascular disease is the most common disease that threatens human health. Many researches indicated that oxidatively modified low-density lipoprotein (ox-LDL) is a key pathogenic factor of atherosclerosis. Here, we report the change of the secondary structure of ox-LDL caused by photoirradiation in an optofluidic resonator. The content ratios of amphipathic α-helices and β-sheets of ox-LDL are changed under laser beam illumination, resulting in an increasing binding rate of ox-LDL and ox-LDL antibodies. Our findings may provide a potential way for clinical atherosclerosis treatment and prompt recovery rate of atherosclerotic cardio-cerebral vascular disease by optical technology and immunotherapy.

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Section: Methodsmentioning

confidence: 99%

Secondary structure changes of ox-LDL by photoirradiation in an optofluidic resonator

Dai

et al. 2022

中国光学快报

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“…The wave vector for a Gaussian beam is distributed tightly around the central beam vector, so most energy can be coupled into the guided mode as the incident angle reaches a phase-match condition. On the other hand, the wave front of a vortex beam has a spiral spatial structure, so its wave vector has a broad distribution, and the coupling efficiency is lower [24,25]. A Fourier-transformation-based beam propagation method was applied to simulate the transmitted light pattern of the Gaussian beam during excitation of a specific UOM.…”

Section: Enhanced Lateral Shift For Gaussian and Vortex Beammentioning

confidence: 99%

Continuous Goos-Hänchen Shift of Vortex Beam via Symmetric Metal-Cladding Waveguide

Kan

Zhi²,

Yin

et al. 2022

Materials

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Goos-Hänchen shift provides a way to manipulate the transverse shift of an optical beam with sub-wavelength accuracy. Among various enhancement schemes, millimeter-scale shift at near-infrared range has been realized by a simple symmetrical metal-cladding waveguide structure owing to its unique ultrahigh-order modes. However, the interpretation of the shift depends crucially on its definition. This paper shows that the shift of a Gaussian beam is discrete if we follow the light peak based on the stationary phase approach, where the M-lines are fixed to specific directions and the beam profile is separated near resonance. On the contrary, continuous shift can be obtained if the waveguide is illuminated by a vortex beam, and the physical cause can be attributed to the position-dependent phase-match condition of the ultrahigh-order modes due to the spatial phase distribution.

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学科交叉视角下的光纤激光：回顾与展望（特邀）

Zhou Pu,

Jiang Min,

Wu Hanshuo

et al. 2023

红外与激光工程

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Highly twisted M-line of a vortex beam due to the coupling of ultrahigh-order modes

Cited by 3 publications

References 7 publications

Secondary structure changes of ox-LDL by photoirradiation in an optofluidic resonator

Secondary structure changes of ox-LDL by photoirradiation in an optofluidic resonator

Continuous Goos-Hänchen Shift of Vortex Beam via Symmetric Metal-Cladding Waveguide

学科交叉视角下的光纤激光：回顾与展望（特邀）

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