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Optics, Volume 3, Issue 4

December 2022 - 11 articles

Cover Story: Decay of Raman active lattice vibrations has been directly traced in time with 120 fs resolution in BaSnO₃, SrTiO₃, and in KTiOPO₄ single crystals. A specially designed coherent anti-Stokes Raman scattering (CARS) spectroscopy technique provided insight into the time dynamics of phonon lines within the range of 350–1500 cm⁻¹. The technique allowed us to perform high dynamic range measurements on damping rates of the characteristic Raman active modes in wide-bandgap materials. The equivalent spectral resolution was as good as 0.1 cm⁻¹ and cannot be attained using other experimental methods. The obtained information is valuable both from the standpoint of problems in fundamental physics and understanding carrier transport properties, including mechanisms that put limits to achieving high electronic mobility. View this paper

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Review

14 Citations

3,473 Views

14 Pages

The Rationale for the Optimal Continuous-Variable Quantum Key Distribution Protocol

Roman Goncharov,
Irina Vorontsova,
Daniil Kirichenko,
Ilya Filipov,
Iurii Adam,
Vladimir Chistiakov,
Semyon Smirnov,
Boris Nasedkin,
Boris Pervushin and
Daria Kargina
+ 2 authors

Optics2022, 3(4), 338-351;https://doi.org/10.3390/opt3040030

21 September 2022

This article describes the current technical level of developments in the field of continuous-variable quantum key distribution (CV-QKD). Various classifications are described, the criteria are analyzed, and the optimal protocol is selected. The anal...

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Optics - ISSN 2673-3269

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