342 research outputs found
Optical properties of surface plasmon polaritons and semiconductor based quantum system
No full text[no abstract
Investigation of plasmonic structures for use as sensors and signal processing devices
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Optically-resonant nanostructure-based systems for spectral selectivity
No full textThis thesis presents two different approaches for spectrally-selective nanostructure-based systems with their specific advantages and disadvantages; see Chapter 1 for spectrally-selective Mie-resonant metasurfaces, and Chapter 2 for nanostructure-modulated FP resonators. Furthermore, to bridge the gap between fundamental science and industry, novel fabrication techniques laser-induced tailoring and structuring of metasurfaces are presented; see Chapter 3. All things considered, this work is not intended to revolutionize optics. Still, it is written with a bit of hope to put a small step in the development of nanophotonics and its applicability in real-world applications
Laser printing of nanoparticles for applications in nanophotonics (Conference Presentation)
No full textLaser printing: trends and perspectives
No full textIn this paper, I present my personal view on the possible development and applications of laser printing technologies based on laser-induced forward transfer of inorganic and biological materials. Laser printing of micro- and nanoparticles, living cells, and microorganisms are discussed
On the origin of photon mass, momentum, and energy in a dielectric medium [Invited]
No full textThe debate and controversy concerning the momentum of light in a dielectric medium (Abraham vs Minkowski) is well-known and still not fully resolved. In this paper, we investigate the origin of both momenta in the frame of special relativity by considering photons in media as relativistic quasiparticles. We demonstrate for the first time to the best of our knowledge that the Minkowski form of the photon mass, momentum, and energy follows directly from the relativistic energy conservation law. We introduce a new expression for the momentum of light in a dispersive medium, consistent with the experimentally observed propagation of photons at the group velocity. Finally, the effect of light-induced optical stretching is discussed, which can be used for experimental verification of the existing expressions for the photon momentum
Biomimetic Liquid-Repellent Surfaces by Ultrafast Laser Processing
No full textThis review is focused on the realization of liquid-repellent surfaces, inspired by two biological models: “dry” superhydrophobic leaves and “slippery” liquid-repellent carnivorous plants using ultrafast laser processing. After a short introduction to a biomimetic development process, an overview of the laser-fabricated structures, which were intensively used for the realization of biomimetic “dry” and “slippery” liquid-repellent surfaces, is given. The influence of process parameters on the structure morphology is discussed. A summary of superhydrophobic and liquid-repellent modifications of different materials (metals, semiconductors, and polymers), including wettability characteristics and processing details, is provided. The technological applications of laser-structured liquid-repellent surfaces are discussed
Femtosecond laser ablation of polymeric substrates for the fabrication of microfluidic channels
No full textFemtosecond laser ablation of polymeric substrates for the fabrication of microfluidic channel
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