Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Markus Selmke"'
The action of a nanoscopic spherically symmetric refractive index profile on a focused Gaussian beam may easily be envisaged as the action of a phase-modifying element, i.e. a lens: Rays traversing the inhomogeneous refractive index field n(r) collec
Externí odkaz:
http://arxiv.org/abs/1109.2772
Publikováno v:
Chancen und Risiken von Quantentechnologien ISBN: 9783658375331
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::adefde4634b3c9269e7f018f5aa29833
https://doi.org/10.1007/978-3-658-37534-8_7
https://doi.org/10.1007/978-3-658-37534-8_7
Autor:
James A. Lock, Markus Selmke
Publikováno v:
Applied optics. 60(21)
Around 1508, Leonardo da Vinci first noted and sketched a cross-shaped caustic produced by a plane wave diagonally incident on the meniscus surrounding a bubble on the surface of a water-filled container. This caustic was analyzed in a companion pape
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b43dc9bb56e96a93f72922ad1b4ec886
https://pubmed.ncbi.nlm.nih.gov/34613288
https://pubmed.ncbi.nlm.nih.gov/34613288
Autor:
James A. Lock, Markus Selmke
Publikováno v:
Applied optics. 60(21)
Around 1508, Leonardo DaVinci observed a curious image of the sun formed by a floating bubble. Now, some 500 years later, we give a full picture of the surprisingly rich phenomenology of the light pattern formed below surface bubbles. Under shallow i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::427d1db8b7630ba36fbdac3516fe9fae
https://pubmed.ncbi.nlm.nih.gov/34613287
https://pubmed.ncbi.nlm.nih.gov/34613287
Autor:
James A. Lock, Markus Selmke
Publikováno v:
Applied optics. 60(21)
In about 1508, Leonardo da Vinci first noted and sketched a cross-shaped caustic produced by a plane wave diagonally incident on the circularly symmetric meniscus surrounding a bubble on the surface of a water-filled container. This caustic was analy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd79428b7e6c8e50af957c8447007e2b
https://pubmed.ncbi.nlm.nih.gov/34613289
https://pubmed.ncbi.nlm.nih.gov/34613289
Autor:
Markus Selmke, James A. Lock
Publikováno v:
Applied optics. 59(26)
The optical caustics of the combined water menisci raised by two objects with identical circular cross sections show peculiar caustic metamorphoses known from binary gravitational lenses. We highlight their genericity and analyze the connection of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::96270f1d2b8823b724f85cafbced5597
https://pubmed.ncbi.nlm.nih.gov/32976474
https://pubmed.ncbi.nlm.nih.gov/32976474
Publikováno v:
Physical Chemistry Chemical Physics. 20:10502-10520
Photon nudging is a new experimental method which enables the force-free manipulation and localization of individual self-propelled artificial micro-swimmers in fluidic environments. It uses a weak laser to stochastically and adaptively turn on and o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e7a48ff050a1008e775e56d5217d990
https://doi.org/10.1039/c7cp06559k
https://doi.org/10.1039/c7cp06559k
Autor:
Markus Selmke, James A. Lock
Publikováno v:
Applied Optics. 60:9188
Light scattered by floating bubbles is a fascinating everyday phenomenon and a relevant issue for climate science and remote sensing. Here, we discuss light scattering in the upward hemisphere in the geometrical optics (GO) approximation for plane wa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::10651d10b9624b67e3f9e26c7833cffd
https://doi.org/10.1364/ao.438432
https://doi.org/10.1364/ao.438432
Publikováno v:
ACS Photonics. 4:681-687
Using a fixed pump beam and a steerable probe beam, we image the thermal lens generated by a harmonically heated gold nanoparticle using photothermal deflection. In combination with a simple geometric optics model, we extract thermal diffusivities. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc5cc544f6f8372d23f4efaafcf884af
https://doi.org/10.1021/acsphotonics.7b00044
https://doi.org/10.1021/acsphotonics.7b00044
Autor:
Markus Selmke
Starting from a peculiar image observed below a bubble floating at a water-air interface, the article analyzes several optical properties of these special types of refracting objects (coined \textit{bubble axicons}). Using mainly geometrical optics,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed226aab9f5f0c13fc2e7a3f9e098aa7
https://publica.fraunhofer.de/handle/publica/261214
https://publica.fraunhofer.de/handle/publica/261214