TOM 1 - Silicon Photonics and Guided-Wave Optics
TOM 2 - Computational, Adaptive and Freeform Optics
TOM 3 - Optical System Design, Tolerancing and Manufacturing
TOM 4 - Bio-Medical Optics
TOM 5 - Resonant Nanophotonics
TOM 6 - Optical Materials: crystals, thin films, organic molecules and polymers, syntheses, characterization and devices
TOM 7 - Thermal radiation and energy management
TOM 8 - Nonlinear and Quantum Optics
TOM 9 - Optics at Nanoscale (ONS)
TOM 10 - Optical Microsystems (OMS)
TOM 11 - Waves in Complex Photonic Media
TOM 12 - Optofluidics
TOM 13 - Ultrafast Optical Technologies and Applications
TOM 14 - Advances and Applications of Optics and Photonics
EU Project Session
Early Stage Researcher Session organised by SIOF
Grand Challenges of Photonics Session
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Please note that all times are shown in the time zone of the conference. The current conference time is: 29th June 2022, 08:45:38 CEST
Session Chair: Mikhail I. Vasilevskiy, University of Minho, Portugal
8:45 - 9:00 ID: 249 / TOM14 S05: 2 TOM 14 Advances and Applications of Optics and Photonics
3D printing of long period gratings for curvature applications
Nuno F. Valente, Lúcia Bilro, Ricardo Oliveira
Instituto de Telecomunicações and Universidade de Aveiro, Portugal
In this paper we will discuss a new type of long period grating (LPG) consisting on an optical fibre glued on top of a 3D printed grooved plate. The LPG sensor performance will be tested for the case when pressure is applied transversely to the grooved plate. Results showed the appearance of attenuation bands at specific wavelengths, that grow with increasing load. The evolution of the dip power at those resonances, as function of curvature will be shown, demonstrating the potentialities of the sensor for low cost intensity detection schemes.
9:00 - 9:15 ID: 291 / TOM14 S05: 3 TOM 14 Advances and Applications of Optics and Photonics
Microfluidic devices manufacturing combining stereolithography and pulsed laser ablation
Bastián Carnero, Carmen Bao-Varela, Ana Isabel Gómez-Varela, María Teresa Flores-Arias
Universidade de Santiago de Compostela, Spain
3D printing has revolutionized the field of microfluidics manufacturing by simplifying the typical processes offering a considerable accuracy and user-friendly procedures. For its part, laser ablation proves to be a versatile technology to perform detailed surface micropatterning. A hybrid technique that combines both technologies is proposed, employing them in their most suitable range of dimensions. This technique allows to manufacture accurate microfluidics devices as the one proposed: a microchannel, obtained using a stereolithographic printer, coupled with an array of microlenses, obtained by pulsed laser ablation of a 3D printed master.
9:15 - 9:30 ID: 326 / TOM14 S05: 4 TOM 14 Advances and Applications of Optics and Photonics
The impact of bacteria exposure on the plasmonic response of silver nanostructured surfaces
Giuseppe Maria Paternò1, Aaron Michael Ross2, Silvia Maria Pietralunga1,3, Simone Normani1, Liliana Moscardi1,2, Guglielmo Lanzani1,2, Francesco Scotognella1,2
1Center for Nanoscience and Technology, Istituto Italiano di Tecnologia, Center,Milano, Italy; 2Department of Physics, Politecnico di Milano, Milano, Italy; 3Institute for Photonics and Nanotechnologies, Consiglio Nazionale delle Ricerche, Milano, Italy
Here, we show that the interaction between bacteria and silver nanostructures leads to dramatic changes in particle morphology and cristallinity, which in turns translates into a modification of the silver plasmon reponse. We exploit such an effect to build up photonic crystals embedding silver nanostructures, which have the potential to reveal colorimetrically the presence of bacteria.
9:30 - 9:45 ID: 186 / TOM14 S05: 5 TOM 14 Advances and Applications of Optics and Photonics
Wide band UV/Vis/NIR blazed-binary reflective gratings: two lithographic techniques investigation
Mane-Si Laure Lee1, Julie Cholet1, Anne Delboulbé1, Raphaël Guillemet1, Brigitte Loiseaux1, Patrick Garabedian1, Thomas Flügel-Paul2, Tino Benkenstein2, Susann Sadlowski2, Nicolas Tetaz3, Roman Windpassinger4, Saroj Mahalik4
1Thales Research & Technology, France; 2Fraunhofer Institute for Applied Optics and Precision Engineering; 3Thales Alenia Space; 4European Space Agency - European Space Research and Technology Centre
We report on subwavelength reflective gratings for hyperspectral applications operating in the 340nm-1040nm spectral range. The blazed grating period of 30µm is composed of 2D subwavelength binary structures with sizes from 120nm to 350nm. Gratings are manufactured on 3” wafers by two lithography technologies (e-beam or nanoimprint) followed by dry etching process. These gratings enable broadband efficiency which is in average 15%-20% above the efficiency requirement for next generation of spectro-imagers for Earth observation missions and a wavefront error that is much smaller than the 100nm requirement for space application.