Zobrazeno 1 - 10
of 169
pro vyhledávání: '"Jachura A"'
Autor:
Jachura Agnieszka
Publikováno v:
E3S Web of Conferences, Vol 44, p 00054 (2018)
This paper discusses the use of modern and effective heating systems, using fossil fuels and renewable energy sources on the example of a comparative analysis of a gas boiler and heat pump for a single-family building. The aim of the work was to cond
Externí odkaz:
https://doaj.org/article/bc2ecbf124b14ed2bcfa6fe9b03b7a64
Publikováno v:
Opt. Express 29, 43091-43103 (2021)
We analyze theoretically optimal operation of an optical key distribution (OKD) link based on fine intensity modulation of an optical signal transmitted over an attenuating channel to a direct detection receiver. With suitable digital postprocessing,
Externí odkaz:
http://arxiv.org/abs/2109.12335
Autor:
Aleksander Bogucki, Ivo John, Łukasz Zinkiewicz, Michał Jachura, Damian Jaworski, Karolina Suwała, Hugo Chrost, Michal Wlodarski, Jakub Kałużny, Doug Campbell, Paul Bakken, Shawna Pandya, Radosław Chrapkiewicz, Sanjay G. Manohar
Publikováno v:
Frontiers in Neurology, Vol 15 (2024)
IntroductionThe pupillary light reflex (PLR) is the constriction of the pupil in response to light. The PLR in response to a pulse of light follows a complex waveform that can be characterized by several parameters. It is a sensitive marker of acute
Externí odkaz:
https://doaj.org/article/4d1b5de8f41042249abbff66a381acfb
Publikováno v:
J. Lightwave Technol. 38(10), 2741-2754 (2020)
This tutorial reviews the Holevo capacity limit as a universal tool to analyze the ultimate transmission rates in a variety of optical communication scenarios, ranging from conventional optically amplified fiber links to free-space communication with
Externí odkaz:
http://arxiv.org/abs/2002.05766
Publikováno v:
Proc. SPIE 10910, Free-Space Laser Communication and Atmospheric Propagation XXXI, 109100A (4 March 2019)
The information capacity of an optical channel under power constraints is ultimately limited by the quantum nature of transmitted signals. We discuss currently available and emerging photonic technologies whose combination can be shown theoretically
Externí odkaz:
http://arxiv.org/abs/1902.03654
Publikováno v:
Proc. SPIE 10524, Free-Space Laser Communication and Atmospheric Propagation XXX, 105240A (15 February 2018)
We investigate theoretically the efficiency of deep-space optical communication in the presence of background noise. With decreasing average signal power spectral density, a scaling gap opens up between optimized simple-decoded pulse position modulat
Externí odkaz:
http://arxiv.org/abs/1801.03947
Autor:
Banaszek, Konrad, Jachura, Michał
Publikováno v:
Proceedings of the 2017 IEEE International Conference on Space Optical Systems and Applications (ICSOS), Naha, Okinawa, Japan, pp. 34-37
We discuss conceptual designs for structured optical receivers that can alleviate the requirement for high peak-to-average power ratio in photon-starved optical communication. The basic idea is to transmit sequences of suitably modulated coherent lig
Externí odkaz:
http://arxiv.org/abs/1711.02521
Publikováno v:
Phys. Rev. Lett. 120, 110502 (2018)
Many quantum information protocols rely on optical interference to compare datasets with efficiency or security unattainable by classical means. Standard implementations exploit first-order coherence between signals whose preparation requires a share
Externí odkaz:
http://arxiv.org/abs/1710.04672
Publikováno v:
Optics Express, Vol. 25, Issue 22, pp. 27475-27487 (2017)
We present a quantum fingerprinting protocol relying on two-photon interference which does not require a shared phase reference between the parties preparing optical signals carrying data fingerprints. We show that the scaling of the protocol, in ter
Externí odkaz:
http://arxiv.org/abs/1710.02336
Publikováno v:
J. Mod. Opt. 65, 262--267 (2018)
We present an optical method to measure radio-frequency electro-optic phase modulation profiles by employing spectrum-to-time mapping realized by highly chirped optical pulses. We directly characterize temporal phase modulation profiles of up to 12.5
Externí odkaz:
http://arxiv.org/abs/1706.09881