Comment on the paper “Improving Poor Man’s Kramers-Kronig analysis and Kramers-Kronig constrained variational analysis”

نویسندگان

چکیده

The title paper [Spectrochim. Acta A 213 (2019): 391–396] reports an improvement of the ”Poor Man’s Kramers–Kronig analysis” and ”Kramers–Kronig constrained variational thanks to ad hoc modification some analytical formulas existing in literature. This is not based on mathematical grounds. In this comment we show that no required but a correction formula used by authors 391–396].

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Magneto-optical Kramers-Kronig analysis.

We describe a simple magneto-optical experiment and introduce a magneto-optical Kramers-Kronig analysis (MOKKA) that together allow extracting the complex dielectric function for left- and right-handed circular polarizations in a broad range of frequencies without actually generating circularly polarized light. The experiment consists of measuring reflectivity and Kerr rotation, or alternativel...

متن کامل

Kramers-Kronig analysis of biological skin

A treatise on the optical property of biological tissue is presented. Water is postulated to be a topological basis and serves to discriminate published skin data. Electromagnetic theory governing dielectric behavior is concisely detailed pertaining to certain optical constants and Kramers-Krönig relation. The Kramers-Krönig relation defining dispersion index is emulated through the discrete Hi...

متن کامل

Causality, Kramers-Kronig Relations, and Landau Damping

We review the consequence of the causality in electrodynamics. The Kramers-Kronig relations are direct consequence of causality which has two ingredients: no perturbation in the remote past and irrelevance of future susceptibility to the present field. It is shown that the dielectric function obtained from the integration along the Landau contour can be derived from the Kramers-Kronig relations...

متن کامل

Kramers-Kronig relations in nonlinear optics

We review dispersion relations, which relate the real part of the optical susceptibility (refraction) to the imaginary part (absorption). We derive and discuss these relations as applied to nonlinear optical systems. It is shown that in the nonlinear case, for self-action effects the correct form for such dispersion relations is nondegenerate, i.e. it is necessary to use multiple frequency argu...

متن کامل

Spatial Kramers–Kronig relations and the reflection of waves

When a planar dielectric medium has a permittivity profile that is an analytic function in the upper or lower half of the complex position plane x = x′+ ix′′ then the real and imaginary parts of its permittivity are related by the spatial Kramers-Kronig relations. We find that such a medium won’t reflect radiation incident from one side, whatever the angle of incidence. Using the spatial Kramer...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy

سال: 2021

ISSN: ['1386-1425', '1873-3557']

DOI: https://doi.org/10.1016/j.saa.2021.119849