Integration of chiral cellulose nanocrystal films in silica optical fibers

Antonopoulos, G.; Kakarantzas, G.

doi:10.1088/2053-1591/ab5004

Cited by 3 publications

(5 citation statements)

References 26 publications

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“…Therefore, we suggest a method for lifting the mode degeneracy by absorbing a dielectric chiral material into the original fiber material background. There are different molecules considered as realistic chiral material such as saccharose solution and glucose solution [23], and chiral cellulose nanocrystals (CNCs) film [24], to achieve specific chiral fiber especially compatible to silica based optical fibers.…”

Section: Introductionmentioning

confidence: 99%

“…The majority of chiral materials are organic in nature and are not compatible with the high processing temperatures required for glass optical fibers. Recently, a novel technique has been proposed for integrating chiral CNC films into silica optical fibers [24]. This innovative approach allows for the practical realization of chiral fibers, leveraging established fabrication techniques for silica optical fibers to enable the development of a new class of fiber devices [24].…”

Section: Introductionmentioning

confidence: 99%

“…Recently, a novel technique has been proposed for integrating chiral CNC films into silica optical fibers [24]. This innovative approach allows for the practical realization of chiral fibers, leveraging established fabrication techniques for silica optical fibers to enable the development of a new class of fiber devices [24]. The method for incorporating chiral CNCs into silica optical fibers is both simple and cost-effective, making it easily achievable using standard optical laboratory fabrication methods [24].…”

Section: Introductionmentioning

confidence: 99%

“…This innovative approach allows for the practical realization of chiral fibers, leveraging established fabrication techniques for silica optical fibers to enable the development of a new class of fiber devices [24]. The method for incorporating chiral CNCs into silica optical fibers is both simple and cost-effective, making it easily achievable using standard optical laboratory fabrication methods [24]. By utilizing this technique, a solid-core chiral fiber based on silica can be fabricated, provided that the appropriate chiral dopant (CNCs) is selected [24].…”

Section: Introductionmentioning

confidence: 99%

“…The method for incorporating chiral CNCs into silica optical fibers is both simple and cost-effective, making it easily achievable using standard optical laboratory fabrication methods [24]. By utilizing this technique, a solid-core chiral fiber based on silica can be fabricated, provided that the appropriate chiral dopant (CNCs) is selected [24]. The guiding principles of such fibers are not fundamentally different from those of conventional optical fibers: light propagates through a high-index core surrounded by a cladding of lower index.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Orbital angular momentum modes in dielectrically chiral-core fibers

Dirbeba,

Li,

Cao

et al. 2024

J. Phys. D: Appl. Phys.

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In this paper, we investigate a dielectrically chiral-core fiber for the generation of orbital angular momentum (OAM) modes. We observe that the presence of chirality induces a modal index split between the same order OAM modes with opposite topological charges and arbitrary phase front rotation directions, which are originally degenerate in achiral fibers. This split indicates the existence of circular birefringence (CB) associated with a dielectric chirality. The modal cutoff splits result in a single polarization property without the possibility of coupling between the same order modes that correspond to a single +l or -l OAM mode guiding. However, neither of the two fundamental modes guided in the chiral fiber exhibits a cutoff, despite having different modal indices due to chirality. Upon fraction of modal power cutoff, the high-order modes in the core region display different cutoff fractions of modal power between the same order modes, while the fundamental mode has no cutoff fraction of modal power. Owing to the CB and different fractions of modal power in the core for different handed OAM modes, dielectrically chiral fibers have potential applications in chiral sensing, circular polarization-dependent OAM mode filters, and new kind of OAM mode generators.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Orbital angular momentum modes in dielectrically chiral-core fibers

Dirbeba,

Li,

Cao

et al. 2024

J. Phys. D: Appl. Phys.

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Enhancing the circular polarization degree of NIR-II circularly polarized light of cellulose nanocrystal films

Lu,

Yu,

Zhu

et al. 2023

Cellulose

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Biomedical engineering aspects of nanocellulose: a review

Rai

Dhar

2022

Nanotechnology

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Cellulose is one of the most abundant renewable biopolymer in nature and is present as major constituent in both plant cell walls as well as synthesized by some microorganisms as extracellular products. In both the systems, cellulose self-assembles into a hierarchical ordered architecture to form micro to nano-fibrillated structures, on basis of which it is classified into various forms. Nanocellulose (NCs) exist as rod-shaped highly crystalline cellulose nanocrystals (CNC) to high aspect ratio cellulose nanofibers (CNF), micro-fibrillated cellulose (MFC) and bacterial cellulose (BC), depending upon the origin, structural and morphological properties. Moreover, NCs have been processed into diversified products ranging from composite films, coatings, hydrogels, aerogels, xerogels, organogels, rheological modifiers, optically active birefringent colored films using traditional-to-advanced manufacturing techniques. With such versatility in structure-property, NCs have profound application in areas of healthcare, packaging, cosmetics, energy, food, electronics, bioremediation, and biomedicine with promising commercial potential. Herein this review, we highlight the recent advancements in synthesis, fabrication, processing of NCs, with strategic chemical modification routes to tailor its properties for targeted biomedical applications. We also study the basic mechanism and models for biosynthesis of cellulose in both plant and microbial systems and understand the structural insights of NC polymorphism. The kinetics study for both enzymatic/chemical modifications of NCs and microbial growth behavior of BC under various reactor configurations are studied. The challenges associated with the commercial aspects as well as industrial scale production of pristine and functionalized NCs to meet the growing demands of market are discussed and prospective strategies to mitigate them are described. Finally, post chemical modification evaluation of biological and inherent properties of NC are important to determine their efficacy for development of various products and technologies directed for biomedical applications.

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Integration of chiral cellulose nanocrystal films in silica optical fibers

Cited by 3 publications

References 26 publications

Orbital angular momentum modes in dielectrically chiral-core fibers

Orbital angular momentum modes in dielectrically chiral-core fibers

Enhancing the circular polarization degree of NIR-II circularly polarized light of cellulose nanocrystal films

Biomedical engineering aspects of nanocellulose: a review

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