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Fostering Excellence
in Photonics and Quantum Science
at the University of Warsaw

Newsletter: Fifth Issue, May 2015

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Workshop for industry

The workshop was organised on the 3rd of February 2015 in the new building of the Faculty of Physics of the University of Warsaw (at Pasteura 5). Its purpose was to present the research highlights at the Faculty of Physics UW to representatives of business and industry and to encourage the development of links and to help to determine potential domains for collaboration between industry and the Faculty of Physics. Around 80 people participated in this event. The program consisted of four presentations followed by an informal meeting during coffee breaks and lunch. The following presentations were given: Anna Pastuszczak - "Layered electromagnetic absorbers," Paweł Wnuk - "Applications of high power lasers," Piotr Skibiński - "Beyond optics - prototyping laboratory equipement," Piotr Fita - "Ultrafast spectroscopy and its applications"

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Metasurfaces and Sub-wavelength Plasmonic DOE

Special session on "Metasurfaces and Sub-wavelength Plasmonic DOE" has been organized in the framework of PhoQus@UW at the SPIE Congress in Prague on 16th April 2015.

http://spie.org/EOO/conferencedetails/metamaterials#session-7

The session was chaired by Rafał Kotyński and included six talks on sub-wavelength plasmonics and specifically on metasurfaces which is a name for two-dimensional light-transforming surfaces. The first talk was given by Roman Antos on the "Theoretical analysis of optical and plasmonic metasurfaces". Then Ben Hopkins was speaking on "Circular dichroism from Fano resonances in planar chiral oligomers". The following talks by Jhuma Dutta, Silvia Romano, Mathilde Makhsiyan and Ahmed Sokar were respectively on "Asymmetric and symmetric coupling of surface-plasmon-polariton waves to planar interfaces with periodically patterned slanted columnar thin films of silver," "High-field enhancement factor in dielectric photonic structures," "Plasmonic planar antenna for spectral and spatial manipulation of the polarization," and on the "Generation of red color and near infrared bandpass filters using nano-scale plasmonic structures."

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Hands-on advanced workshop on scanning near-field microscopy

The workshop on scanning near-field optical microscopy was organised in the framework of PhoQuS@UW at the Faculty of Physics UW on 19th and 20th January 2015. Altogether, over 20 researchers from the Faculty participated in the Workshop. The detailed programme of the Workshop included three lectures, and laboratory work with physical vapour deposition, with scanning electron microscopy and with scanning near-field microscopy. The event was organized by Rafał Kotyński. Lectures included the introductory talk on scanning near-field optical microscopy given by Tomasz Szoplik, the talk on superresolving imaging with metal-dielectric structures and on electromagnetic absorbers given by Anna Pastuszczak, and the talk on nansostructured plasmonic elements and on the PVD evaporation technology with an electron beam given by Piotr Wróbel. The experimental part of the Workshop began in the PVD laboratory with sample preparation – this part of the workshop was also guided by Piotr Wróbel. Prior to the Workshop, several samples were also prepared, including Au, NiCr, BaF2 and LiF structures deposited on silica substrates. The second day of the Workshop was entirely devoted to experimental work with scanning electron microscopy with X-ray microanalysis followed by scanning near-field optical microscopy – this part of the Workshop was guided by Tomasz Stefaniuk.

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OPTON EXPO

The 3rd International Fair for Optoelectronics and Photonics OPTONExpo 2015 was held on 8-9 April 2014 in Warsaw at the Warsaw International Expocentre EXPO XXI. The research activieties in photonics conducted at the Faculty of Physics UW have been presented at the Fair as part of the PhoQuS@UW project. The presentation was given by Cezary Samojłowicz alongside with the members from the OSA Student Chapter at the University of Warsaw. The Fair was a perfect occasion to reach a broad audience of industrial and educational partners interested in optics and photonics. The information activities were focused on extending social awareness as concerns the significance of science and research and to promote the choice of an academic career connected with research or engineering. On top of this, on the second day of the Fair, our presentation point has been attended by numerous school excursions from Warsaw and its neighbourhood, including eg. from the Electro-Electronic Technical School named after E. Konopczyński.The presentation was aimed at explaining the work of an experimental physicist to the young attendees and to strengthen the awareness of the existence of a strong centre of optics, photonics, and quantum physics at the Faculty of Physics UW.

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Optical table finally pattented

The patent PAT.219451 for the "Optical Table" authored by Piotr Wasylczyk has been published on the 30th April 2015 by the Polish Patenting Office. The respective patent application P.398538 was submitted on 21.03.2012.

Application summary: The subject of the invention is an optical table, with an upper layer (1) containing a number of threaded holes (4), a bottom layer (2), and a filling layer (3) in between the upper and lower layers, and at least partly elastically deformable sealing elements in the upper layer".

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Tunable, narrow-band optical filter

The patent application for a "Tunable, narrow-band optical filter for filtering laser beams and a method for filtering laser beams" was submitted to the Polish Patenting Office on 29 April 2014. The invention is authored by Wojciech Wasilewski and Radosław Chrapkiewicz.

Application summary: The invention includes a narrow-band optical filter for filtering laser beams, which contains a heated hermetic filter chamber (1) with an absorbent inside, and specifically with a filter chamber (1) having at least two parallel optical windows, moreover the filter chamber (1) is located in between the sources of magnetic field (10) positioned and configured in such a way that the filter chamber (1) is located in the magnetic field generated by these sources (10), and the direction of the magnetic field is vertical with respect to the filter axis. The invention also includes the method for filtering laser beams, which is specific by including the stage of passing of the laser beam through the filter chamber (1) that contains an absorbent in the vertical magnetic field.

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