Chirality and Chiroptical Effects in Metal Nanostructures: Fundamentals and Current Trends

Abstract

The statement "However, it is yet unclear the extent to which the optical chirality of a field influences the dissymmetry of a chiroptical system in a way that enhances measurable quantities such as CD, or plasmon resonance shifts. Indeed, a complete QED theory to study chiroptical radiation matter interactions in the near field has not been developed." on page 29 of the originally published article is not correct, in the sense that a nearfield quantum electrodynamic (QED) theory has indeed been developed in earlier works. [1] The authors regret this mistake in the article and take the chance to add further references for the readers who might want to go deeper in the subject. [2,3] However, to the best of our knowledge, it is yet unclear to which extent the optical chirality of a field influences the dissymmetry of a chiroptical system in a way that enhances measurable quantities such as circular dichroism (CD), or plasmon resonance shifts in QED frameworks. This correction does not affect the conclusions of the original publication.

Scattering activities bounded by reciprocity and parity conservation

“…As will be shown, it can further reveal hidden connections between seemingly unrelated chiroptical manifestations. Our work can provide coherently simple while penetrating perspectives for broader communities to obtain a unified understanding of chiroptical effects, in both the linear and nonlinear optical regimes [3,34].…”

“…4(b) and (e) (λ = 0.66 µm). In a similar fashion, with n-fold (n ≥ 3) rotational symmetry along the incident axis, the absence of extinction activity would also lead to identical transmissions of RCP and LCP waves (or equivalently, identical transmissions for oppositely propagating CP waves of the same handedness [3,6,12].…”

“…Chiroptical effects in general correspond to different responses of optical systems to circularly polarized (CP) waves of opposite handedness, that is, left and right handed circularly polarized (LCP and RCP) light [1][2][3][4]. Historically, optical activity represents a special kind of chiroptical effect that is synonymous with rotations of polarization planes of linearly polarized light during propagation.…”

“…Intrinsic optical activities have already been extensively studied over more than one hundred years, with its fundamentals well clarified [1,2]. In contrast, extrinsic optical activities had almost remained in oblivion until the recent emergence and rapid expansion of metamaterials and its related disciplines, thanks to which enormous attention has been attracted in the past few years [3,. Though various simple models have been constructed to explain extrinsic optical activities (or hybrid activities of both sorts) in specific structures [6, 15-17, 19, 22, 28], confusions and misconceptions still exist and are widely scattered among existing literatures (refer to the recent work Ref.…”

Intelligent nanophotonics: merging photonics and artificial intelligence at the nanoscale

“…An object is chiral if it cannot be superimposed to its mirror image. Due to its universal existence in nature, chirality has aroused enormous research interests [140][141][142][143][144]. From a nanophotonic point of view, designing chiral nanostructures that respond to chiral light (usually left/right circularly polarized (LCP/RCP) light) differently is of both fundamental and application-wise importance.…”