Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Johannes Dickmann"'
Publikováno v:
Communications Engineering, Vol 3, Iss 1, Pp 1-8 (2024)
Abstract Interferometric sensors, renowned for their exceptional accuracy, leverage the wave properties of coherent electromagnetic radiation. The periodicity of the measurement signal often critically limits the measurement range of sensors utilizin
Externí odkaz:
https://doaj.org/article/e205e9f3d9804c2099539cbfcdb9bdc0
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-6 (2023)
Abstract This paper presents a study on the temperature dependent photo-elastic coefficient in single-crystal silicon with (100) and (110) orientations at a wavelength of 1550 nm. The measurement of the photo-elastic coefficient was performed using a
Externí odkaz:
https://doaj.org/article/d1aa1761d0144d7997c32f65f9b7c1ad
Autor:
Johannes Dickmann, Steffen Sauer, Jan Meyer, Mika Gaedtke, Thomas Siefke, Uwe Brückner, Jonathan Plentz, Stefanie Kroker
Publikováno v:
Communications Physics, Vol 6, Iss 1, Pp 1-5 (2023)
Meta-mirrors may help realize ultra-stable lasers for high-precision metrology, for applications like gravitational wave detection and quantum optics. The authors experimentally realize a new type of microstructured meta-mirror and use it to form a F
Externí odkaz:
https://doaj.org/article/c9aa256314fd4e21bd04a495bb523c37
Autor:
Johannes Dickmann, Steffen Sauer, Jan Meyer, Mika Gaedtke, Thomas Siefke, Uwe Brückner, Jonathan Plentz, Stefanie Kroker
The most precise measurement tools of humankind are equipped with ultra-stable lasers. State-of-the-art laser stabilization techniques are based on external cavities, that are limited by noise originated in the coatings of the cavity mirrors. Microst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2fdd097932d8a88018ec282cef9fa78c
https://doi.org/10.21203/rs.3.rs-1834308/v1
https://doi.org/10.21203/rs.3.rs-1834308/v1
Ultra-stable laser cavities are the core components of today’s most precise measurement instruments. To design and realize an ultra-stable laser cavity, one must suppress all kinds of noise below the desired frequency stability. The thermal noise o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1bfa7dceafb6ba74e3ac8431b9db272a
https://doi.org/10.21203/rs.3.rs-1776552/v1
https://doi.org/10.21203/rs.3.rs-1776552/v1
Autor:
Johannes Dickmann
Publikováno v:
Optics express 29 (2021) nr 22, p. 36546-36558.-https://doi.org/10.1364/OE.438507--Opt Express--http://www.bibliothek.uni-regensburg.de/ezeit/?1491859--http://www.opticsexpress.org/Issue.cfm--https://www.osapublishing.org/oe/home.cfm--1094-4087--1094-4087
Thermal noise of optical components is one of the sensitivity limiting effects in gravitational wave detectors, laser stabilization cavities and many other experiments in basic research. However, current methods for the computation of thermal noise a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81e9416e1e9ed969d7c390beb8e0cb37
https://pubmed.ncbi.nlm.nih.gov/34809063
https://pubmed.ncbi.nlm.nih.gov/34809063
Publikováno v:
Classical and Quantum Gravity. 39:135001
With a relative length measurement precision of better than 10−23, gravitational wave interferometers are the most precise instruments that have ever been built. With this enormous sensitivity many noise sources potentially effect gravitational wav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39d9affebdc13f82cf7b6e510a823bd0
https://doi.org/10.1088/1361-6382/ac6e21
https://doi.org/10.1088/1361-6382/ac6e21
We theoretically investigate the influence of gravity on laser light in a hemispherical optical cavity, operating on Earth. The propagation of light in such a cavity is modeled by a Gaussian beam, affected by the Earth's gravitational field. On labor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6fe6ae178297d61c1d5221b717f73ff3
http://arxiv.org/abs/2010.09352
http://arxiv.org/abs/2010.09352
As known from Einstein's theory of general relativity, the propagation of light in the presence of a massive object is affected by gravity. In this work, we discuss whether the effect of gravitational light bending can be observed in Earth-based expe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::250bc72b5f0b2defd641f8eb64cb7fe6
http://arxiv.org/abs/2002.02170
http://arxiv.org/abs/2002.02170
Publikováno v:
EPJ Web of Conferences, Vol 238, p 06006 (2020)
We designed, realized, and characterised an imaging Mueller matrix ellipsometry setup for the pixelwise measurement of the Mueller matrices in microscope images. Our setup is capable of performing measurements in reflection as well as in transmission
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d8eae4926f9680dbfadbe92a815ac5d
https://www.epj-conferences.org/articles/epjconf/pdf/2020/14/epjconf_eosam2020_06006.pdf
https://www.epj-conferences.org/articles/epjconf/pdf/2020/14/epjconf_eosam2020_06006.pdf