Optical Activity in Ferroelectric LiH3(SeO3)2

Futama, Hideo; Pepinsky, R.

doi:10.1143/jpsj.17.725

Cited by 41 publications

(12 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Nevertheless, one can achieve strong chiroptical effects using simply fabricated intrinsically achiral planar metamaterials (or metasurfaces) by tilting their symmetry axes with respect to the light plane of incidence. This phenomenon was first described by Bunn [32] and detected in nematic liquid crystals [33], nonenantiomorphous crystals [34,35], and layers with orientated molecules [36][37][38] (for a detailed review see Refs. [39][40][41]).…”

Section: Introductionmentioning

confidence: 85%

Enhanced optical activity in hyperbolic metasurfaces

Kotov

Lozovik

2017

Phys. Rev. B

View full text Add to dashboard Cite

The optical activity of achiral nonmagnetic uniaxial metasurfaces caused by the extrinsic chirality arising from the mutual orientation of their anisotropy axis and the light plane of incidence is studied. The hyperbolic regime of the metasurfaces manifests in the amplification of the polarization rotation in the transmitted light and in the giant enhancement of the effect in the reflected light. The transition to this regime is frequency dependent and has the topological nature. The key role in the optical activity enhancement belongs to the σ-near-pole and hyperbolic σ-near-zero regimes of the metasurfaces. The hyperbolic metasurfaces based on graphene strips or metal disks, and a black phosphorus thin film as a natural hyperbolic layer are considered. The efficiency of the predicted effects depends on the metasurfaces implementation and the role of a substrate. By varying the metasurface parameters and choosing the physical realizations it is possible to design such a hyperbolic metasurface polarizer for the THz, infrared, and visible working ranges. Our findings may help to improve metasurface polarizers by using them in the hyperbolic regime.

show abstract

Section: Introductionmentioning

confidence: 85%

Enhanced optical activity in hyperbolic metasurfaces

Kotov

Lozovik

2017

Phys. Rev. B

View full text Add to dashboard Cite

show abstract

“…Note added in proof: Ferroelectricity and crystal structure: Futama & Pepinsky (1962) found that the optic axial plane is approximately parallel to the (]01) plane and the optic axial angle is 68 ° with the b axis as the acute bisectrix. The optic axes are approximately along the [111] and [1T1 ] directions.…”

Section: Surroundings Of the Oxygen Atomsmentioning

confidence: 99%

“…Recently, a ferro-to para-electric transition at 72°C was induced in ALS by the application of a hydrostatic pressure of 12.5 kbar, which indicated a hypothetical Curie point of 147 °C (Samara & Anderson, 1966;Samara, 1968). ALS was also the first crystal with point group m to show rotatory power along its optic axes and for which a dextro-laevo conversion was obtained by the application of an electric field (Futama & Pepinsky, 1962).…”

Section: Introductionmentioning

confidence: 99%

Refinement of the crystal structure of ferroelectric acid lithium selenite: position of the lithium ion

Rao¹,

Viswamitra²

1971

Acta Crystallogr Sect B

View full text Add to dashboard Cite

“…Among ten ferroelectric (pyroelectric) classes, seven classes such as C,, C,, C,, CZv, C,, C,, and C, belong to optically active classes. However, only a few crystals have ever been reported t o be both ferroelectric and optically active : LiH,(SeO,), [5] and NaNO, [6] are other examples. Therefore it goes without saying that very little work has been done on the quantitative elucidation of optical activity of ferroelectric crystals.…”

Section: Introductionmentioning

confidence: 99%

“…is ferroelectric with the polarization directed in the unique c-axis below 8. 5 "C [l]. By X-ray diffraction works [2,3], the space group of this crystal in the paraelectric and ferroelectric phases have been determined to be D: (enantiomorphic Dt) and C: (enantiomorphic C:) respectively.…”

Section: Introductionmentioning

confidence: 99%

Optical activity of ferroelectric dicalcium strontium propionate

Kobayashi

Bouillot

Kinoshita

1971

Physica Status Solidi (b)

View full text Add to dashboard Cite

Optical rotatory power of Ca,Sr(C,H,CO,), was accurately measured over a wide temperature range containing both paraelectric and ferroelectric states. The gyration tensor qS3 has been determined from the experimental data; for instance, qss = 2.131 x 10-6, paraelectric a t 20 "C, and 2.129 x lo-&, ferroelectric a t -20 "C (A = 546 nm). A theory of optical activity based upon Born's theory has been developed in order to apply it to the ferroelectricity. In the light of the theory the ferroelectric property of Ca,Sr(C,H,CO,),, is discussed, and it has been revealed that some change occurs around -64 "C in either antisymmetrical parts of interelectronic coupling tensor or shifts of the atoms responsible for its ferroelectricity.Nous avons mesure avec precision le pouvoir rotatoire de Ca,Sr(C,H,CO,), dans un large domaine de temperature comprenant 8, la fois les Btats para et ferroblectriques, et nous avons ainsi pu determiner le tenseur de gyration qm; par exemple, g, = 2,131 x dans la phase paraelectrique 8, 20 "C, et 2,129 x 10-5 dans la phase ferroelectrique 8, -20 "C, pour la longuer d'onde Iz = 646 nm. Nous avons developpb la theorie de Born de maniere 8, I'appliquer au cw de la ferro6lectricit8, et nous pouvons ainsi interpreter les rbsultats expbrimentaux. Nous sommes alors amenbs 8, supposer q'un changement doit intervenir aux environs de -64 "C, soit dans la partie antisymmbtrique du tenseur d'interactions entre electrons, soit dans le deplacement des atomes responsables de la ferroblectricitb.

show abstract

Optical Activity in Ferroelectric LiH₃(SeO₃)₂

Cited by 41 publications

References 3 publications

Enhanced optical activity in hyperbolic metasurfaces

Enhanced optical activity in hyperbolic metasurfaces

Refinement of the crystal structure of ferroelectric acid lithium selenite: position of the lithium ion

Optical activity of ferroelectric dicalcium strontium propionate

Contact Info

Product

Resources

About