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Chiroptical spectroscopy provides a non-invasive, label-free approach for resolving microscopic structural details via interactions with circularly polarized light. Despite the widespread application and complementary information provided…

Chirality introduces intriguing topological, electronic, and spin-optronic properties to molecules and solids. In this work, we provide a quantitative metric for the degree of chirality in solids, independent of the type of system and the…

材料科学 · 物理学 2025-09-18 Andrew Grieder , Shihao Tu , Yuan Ping

Inducing chirality in optically and electronically active materials is interesting for applications in sensing and quantum information transmission. Two-dimensional (2D) transition metal chalcogenides (TMDs) possess excellent electronic and…

材料科学 · 物理学 2024-04-11 Ye Wang , Yiru Zhu , Han Yan , Yang Li , Yan Wang , Manish Chhowalla

Supramolecular assemblies of lander molecules (C$_{90}$H$_{98}$) on Cu(100) are investigated with low-temperature scanning tunneling microscopy. The energetically most favourable conformation of the adsorbed molecule is found to exist in…

其他凝聚态物理 · 物理学 2009-11-10 J. Kuntze , X. Ge , R. Berndt

Circular dichroism (CD) is an intriguing chiroptical phenomenon associated with the interaction of chiral structures with circularly polarized lights. Although the CD effect has been extensively studied in optics, it has not yet been…

应用物理 · 物理学 2023-06-21 Qing Tong , Jensen Li , Shubo Wang

Structured light enables the characterization of chirality of optically small nanoparticles by taking advantage of the helicity maximization concept recently introduced in[1]. By referring to fields with nonzero helicity density as chiral…

应用物理 · 物理学 2020-11-04 Mina Hanifeh , Mohammad Albooyeh , Filippo Capolino

DNA and proteins are chiral: their three-dimensional structure cannot be superimposed with its mirror image. Circular dichroism spectroscopy is widely used to characterize chiral compounds, but data interpretation is difficult in the case…

生物大分子 · 定量生物学 2020-09-09 Steven Daly , Frederic Rosu , Valerie Gabelica

Superchiral field is highly important for ultrasensitive detection of chiral objects and has been intensively explored. Despite the progress, the construction of electromagnetic field in achiral nanostructures with giant chirality (C) is…

光学 · 物理学 2025-09-19 Hamdi Barkaoui , Kang Du , Yimu Chen , Shumin Xiao , Qinghai Song

Chirality refers to a geometric phenomenon in which objects are not superimposable on their mirror image. Structures made of nano-scale chiral elements can display chiroptical effects, such as dichroism for left- and right- handed…

光学 · 物理学 2020-02-25 Behrooz Semnani , Jeremy Flannery , Rubayet Al Maruf , Michal Bajcsy

The presence of chirality in the main molecules of life may well be not just a structural artifact, but of pure biological advantage. The possibility of the existence of a phenomenon of a special mode of interaction, labeled as "chiral…

生物物理 · 物理学 2007-05-23 G. Gilat

Emergence of collective dynamical chirality (CDC) at mesoscopic scales plays a key role in many formation processes of chiral structures in nature, which may also provide possible routines for people to fabricate complex chiral…

软凝聚态物质 · 物理学 2017-02-15 Huijun Jiang , Huai Ding , Mingfeng Pu , Zhonghuai Hou

Chirality describes the asymmetry between an object and its mirror image and manifests itself in diverse functionalities across all scales of matter - from molecules and aggregates to thin films and bulk chiral materials. A particularly…

Dynamic control of circular dichroism in photonic structures is critically important for compact spectrometers, stereoscopic displays, and information processing exploiting multiple degrees of freedom. Metasurfaces can help miniaturize…

Structural chirality plays an important role in solid state physics and leads to a variety of novel physics. The feasibility of probing structural chirality of crystals using high harmonic generation in solids is explored in this work.…

光学 · 物理学 2020-05-15 Zi-Yu Chen , Rui Qin

The interplay of electrons with a chiral medium has a diverse impact across science and technology, influencing drug separation, chemical reactions, and electronic transport. In particular, such electronchirality interactions can…

介观与纳米尺度物理 · 物理学 2024-08-23 Anil Kumar Singh , Kevin Martin , Maurizio Mastropasqua Talamo , Axel Houssin , Nicolas Vanthuyne , Narcis Avarvari , Oren Tal

Optical chirality density is a measure of the local handedness of electromagnetic fields. Like energy density, it may be absorbed or scattered through the interaction between light and matter. Here, we utilize the conservation of optical…

The practical applications of chiral discrimination are usually limited by the weak chiral response of enantiomers and the high complexity of detection methods. Here, we propose to use the C lines (i.e., lines of polarization singularities)…

光学 · 物理学 2022-03-22 Shiqi Jia , Jie Peng , Yuqiong Cheng , Shubo Wang

Advanced photonic nanostructures have enabled the maximization of synthetic chiroptic activities. The unique structuring of these building blocks has empowered chiral selective interactions with electromagnetic waves in plasmonic structures…

Due to the mirror symmetry breaking, chiral structures show fantastic electromagnetic (EM) properties involving negative refraction, giant optical activity, and asymmetric transmission. Aligned electric and magnetic dipoles excited in…

经典物理 · 物理学 2019-08-26 Menglin L. N. Chen , Li Jun Jiang , Wei E. I. Sha , Wallace C. H. Choy , Tatsuo Itoh

Chiroptical responses in atomic systems are usually weak, as they arise from the interference between electric- and much weaker magnetic-dipole transitions. We show that atoms arranged in chiral geometries can instead exhibit a strong…

原子物理 · 物理学 2026-02-18 Marcella L. Xavier , Felipe A. Pinheiro , Romain Bachelard