Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Joachim Knittel"'
Autor:
Michael A. Taylor, Jiri Janousek, Vincent Daria, Joachim Knittel, Boris Hage, Hans-A. Bachor, Warwick P. Bowen
Publikováno v:
Physical Review X, Vol 4, Iss 1, p 011017 (2014)
We report both subdiffraction-limited quantum metrology and quantum-enhanced spatial resolution for the first time in a biological context. Nanoparticles are tracked with quantum-correlated light as they diffuse through an extended region of a living
Externí odkaz:
https://doaj.org/article/7cbdee21ab144b84b8ce34580cb99e61
Publikováno v:
New Journal of Physics, Vol 15, Iss 2, p 023018 (2013)
A general quantum limit to the sensitivity of particle position measurements is derived following the simple principle of the Heisenberg microscope. The value of this limit is calculated for particles in the Rayleigh and Mie scattering regimes, and w
Externí odkaz:
https://doaj.org/article/1ec3ab10a7b44a5998da8d37785115f2
Autor:
Warwick P. Bowen, Joachim Knittel, Jiri Janousek, Boris Hage, Vincent Ricardo Daria, Michael A. Taylor, Hans-A. Bachor
We demonstrate the first biological measurement with precision surpassing the quantum noise limit. Lipid particles within a living yeast cell are tracked with sub-shot noise sensitivity, thereby revealing the biological dynamics of the cellular cytop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d9d8f186e4b3e531dce968a4ac23899
Autor:
Stefan Forstner, Eoin Sheridan, George A. Brawley, Warwick P. Bowen, Joachim Knittel, Christopher L. Humphreys, Halina Rubinsztein-Dunlop
Publikováno v:
Advanced Materials. 26:6348-6353
A cavity optomechanical magneto-meter operating in the 100 pT range is reported. The device operates at earth field, achieves tens of megahertz bandwidth with 60 μm spatial resolution and microwatt optical-power requirements. These unique capabiliti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::67652034c32d412c85ea4866342d0e04
https://doi.org/10.1002/adma.201401144
https://doi.org/10.1002/adma.201401144
Autor:
Vincent Ricardo Daria, Jiri Janousek, Michael A. Taylor, Warwick P. Bowen, Boris Hage, Hans-A. Bachor, Joachim Knittel
Publikováno v:
Scopus-Elsevier
Quantum metrology allows high sensitivity measurements to proceed with a lower light intensity than classically possible [1]. An important frontier for this technology is in biological measurements, where photochemical interactions often disturb biol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c28f14795a5aaaac4aa438f306865f7b
https://doi.org/10.1038/nphoton.2012.346
https://doi.org/10.1038/nphoton.2012.346
Publikováno v:
Optical Review. 16:583-586
Random phase masks in object and reference beam of page-based holographic storage systems suppress the DC-peak and improve the overlap of both beams inside the storage material. Furthermore, they allow for a narrow shift-selectivity. In a holographic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26474b9221f2c268dc90242351215f00
https://doi.org/10.1007/s10043-009-0115-3
https://doi.org/10.1007/s10043-009-0115-3
Publikováno v:
Japanese Journal of Applied Physics. 47:5993-5996
Page-oriented holographic data storage systems (HDSSs) generally use spatial light modulators (SLMs) to generate two-dimensional (2D) digital patterns, so-called data pages. These data pages are stored via interference patterns of the object and refe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c9da19f26a45f2c46d72faa9a2925ef
https://doi.org/10.1143/jjap.47.5993
https://doi.org/10.1143/jjap.47.5993
Autor:
Oliver Malki, Wolfgang Hossfeld, Heiko Trautner, Hartmut Richter, Joachim Knittel, Frank Przygodda
Publikováno v:
Japanese Journal of Applied Physics. 46:3793-3796
Common-aperture holography is presented as an alternative shift multiplexing concept. We measured the shift selectivity of holograms recorded with this novel concept. The experimental results are discussed and compared to theoretical predictions calc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b27372071a5e8c360cfda1ba1bb9def
https://doi.org/10.1143/jjap.46.3793
https://doi.org/10.1143/jjap.46.3793
Publikováno v:
Microsystem Technologies. 13:161-164
A temperature controlled liquid crystal lens for spherical aberration compensation in a Blu-ray optical pickup is demonstrated and the influence of the temperature on the switching time is investigated. Using the liquid crystal BL-006, the shortest s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::55688f7b9e88b9ef8b8735811ee8979c
https://doi.org/10.1007/s00542-006-0140-0
https://doi.org/10.1007/s00542-006-0140-0
Autor:
Joachim Knittel
Publikováno v:
Japanese Journal of Applied Physics. 45:1266-1269
A theoretical model has been developed to investigate the influence of wavefront aberrations on the signal in a shift-multiplexed holographic data storage system.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6d4a41bfa49cfe37eefa75692916aa6
https://doi.org/10.1143/jjap.45.1266
https://doi.org/10.1143/jjap.45.1266