Circularly and elliptically polarized light under water and the Umov effect

Ding, Yitian; Pau, Stanley

doi:10.1038/s41377-019-0143-0

Cited by 21 publications

(10 citation statements)

References 25 publications

(27 reference statements)

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“…Polarization refers to the asymmetry between the vibration direction and the propagation direction of the light wave 1 , 2 . Polarized light can be divided into linearly, circularly, elliptically, and partially polarized light according to different polarization characteristics 3 – 6 . Among them, circularly polarized light has attracted wide research interests due to its benefits for eye health as well as widespread application prospects in 3D displays, optical sensors, and optical information storage or encryption 7 – 13 .…”

Section: Introductionmentioning

confidence: 99%

Circularly polarized luminescence from organic micro-/nano-structures

et al. 2021

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Circularly polarized light exhibits promising applications in future displays and photonic technologies. Circularly polarized luminescence (CPL) from chiral luminophores is an ideal approach to directly generating circularly polarized light, in which the energy loss induced by the circularly polarized filters can be reduced. Among various chiral luminophores, organic micro-/nano-structures have attracted increasing attention owing to the high quantum efficiency and luminescence dissymmetry factor. Herein, the recent progress of CPL from organic micro-/nano-structures is summarized. Firstly, the design principles of CPL-active organic micro-/nano-structures are expounded from the construction of micro-/nano-structure and the introduction of chirality. Based on these design principles, several typical organic micro-/nano-structures with CPL activity are introduced in detail, including self-assembly of small molecules, self-assembly of π-conjugated polymers, and self-assembly on micro-/nanoscale architectures. Subsequently, we discuss the external stimuli that can regulate CPL performance, including solvents, pH value, metal ions, mechanical force, and temperature. We also summarize the applications of CPL-active materials in organic light-emitting diodes, optical information processing, and chemical and biological sensing. Finally, the current challenges and prospects in this emerging field are presented. It is expected that this review will provide a guide for the design of excellent CPL-active materials.

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Section: Introductionmentioning

confidence: 99%

Circularly polarized luminescence from organic micro-/nano-structures

et al. 2021

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“…(3), an output Stokes vector as a function of φ and δ is found. An efficiency can now be calculated as the ratio of the reflected DoCP to the incident DoLP 10 . The relation is shown below in Eq.…”

Section: Theorymentioning

confidence: 99%

“…TIR in the natural world most commonly occurs at a water-air interface, where incident linearly polarized light undergoes a phase shift to become elliptically polarized. Studies have been performed showing the utility of underwater imaging using circular and elliptically polarized light 10 as well as the observation of elliptical polarization vision in animals [11][12][13] . Notably, this includes the Mantis shrimp 14 and other crustaceans.…”

mentioning

confidence: 99%

Observation of elliptically polarized light from total internal reflection in bubbles

Miller

Ding

Jiang

et al. 2020

Sci Rep

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Bubbles are ubiquitous in the natural environment, where different substances and phases of the same substance forms globules due to differences in pressure and surface tension. Total internal reflection occurs at the interface of a bubble, where light travels from the higher refractive index material outside a bubble to the lower index material inside a bubble at appropriate angles of incidence, which can lead to a phase shift in the reflected light. Linearly polarized skylight can be converted to elliptically polarized light with efficiency up to 53% by single scattering from the water-air interface. Total internal reflection from air bubble in water is one of the few sources of elliptical polarization in the natural world. Stationary and dynamic scenes of air bubbles in water in both indoor and outdoor settings are studied using an imaging polarimeter. Our results are important for studies in fluid dynamics, remote sensing, and polarimetry.

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“…Polarization is a property of light complementing other electromagnetic radiation attributes such as intensity, frequency, or spectral characteristics [1], [2]. Different characteristics of object such as surface roughness and complex refractive index will change the polarization state of light that reflected from the object surface in varying ways [3]- [6].…”

Section: Introductionmentioning

confidence: 99%

Modified Degree of Polarization Function for Rough Metallic Surface Parameter Estimation Based on Multispectral Polarimetric Measurement

Wang

Yuan

et al. 2020

IEEE Access

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In order to recognize different materials from passive polarimetric measurements specifically, a model that can describe the distribution of polarization energy scattered from the target surface is needed for estimating the parameters of interest (complex refractive index n, k and surface roughness ) of targets. This paper presents a new method for targets parameters estimation. The presented method modifies the degree of linear polarization (DOLP) model by introducing the Lorentz-Drude dispersion constants which do not vary with wavelength as well as the diffuse component of reflection related to the surface roughness to the DOLP equation. This solves the problem of difficulty and inaccuracy caused by multi-angle passive polarimetric measurements used by previous works and helps to improving the parameters estimation accuracy for rough targets. The Monte Carlo simulations result illustrate that the presented method is robust to Gaussian noise. Moreover, the experimental results of rough aluminium plate and rough copper plate validate the effectiveness of the presented model. The errors of estimated n are about 8% for aluminium plate and 9% for copper plate. The errors of estimated k are less than 4% for aluminium plate and no more than 5% for copper plate. The errors of estimated surface roughness  are about 6.8% and about 6% for aluminium plate and copper plate respectively. The high estimation accuracy and less detection angle requirement achieved by the presented method are significant for material characterization in passive remote sensing application.

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Circularly and elliptically polarized light under water and the Umov effect

Cited by 21 publications

References 25 publications

Circularly polarized luminescence from organic micro-/nano-structures

Circularly polarized luminescence from organic micro-/nano-structures

Observation of elliptically polarized light from total internal reflection in bubbles

Modified Degree of Polarization Function for Rough Metallic Surface Parameter Estimation Based on Multispectral Polarimetric Measurement

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