Essays about: "Photonic Crystals"
Showing result 1 - 5 of 8 essays containing the words Photonic Crystals.
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1. Transient Plasma Photonic Crystals - A Route Towards Slow Ultra-intense Light?
University essay from Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionenAbstract : Periodic electron and ion density modulations in near critical density plasmas induced by counterpropagating femtosecond pulses of intensities on the order of 10¹⁵ to 10¹⁶ Wcm⁻² are described in a linear and stationary regime and investigated using particle-in-cell simulations in one and two dimensions. The periodic gratings produce transient plasma photonic crystals lasting up to several picoseconds with ultra-wide angle-selective band gaps on the order of Δω/ω₀ ≈ 10-20%. READ MORE
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2. Construction and Characterization of a Confocal Setup for Functionalization of Light Emitting Diodes and Laser Diodes Using an Amorphous Nonlinear Medium
University essay from Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionenAbstract : A confocal microscope is built to examine molecular powders, and in particular the (PhSn)_4S_6 cluster, that emits white light when irradiated with infrared laser light. The confocal microscope operating at long working distances is assembled and characterized. READ MORE
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3. Self-Assembly and Electrical Conductivity of Colloids
University essay from Uppsala universitet/MaterialfysikAbstract : Self-assembly is an astonishing phenomenon at the base of organized structures’ formation from disordered systems. It occurs in nature from atomic and molecular lengths to galactic distances. Nowadays self-assembly of colloidal solutions can be used to fabricate photonic crystals and metamaterials. READ MORE
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4. Pseudospectra and Linearization Techniques of Rational Eigenvalue Problems
University essay from Institutionen för matematik och matematisk statistikAbstract : This thesis concerns the analysis and sensitivity of nonlinear eigenvalue problems for matrices and linear operators. The first part illustrates that lack of normality may result in catastrophic ill-conditioned eigenvalue problem. READ MORE
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5. Simulation of Phased Arrays with Rectangular Microstrip Patches on Photonic Crystal Substrates
University essay from Institutionen för datavetenskap, fysik och matematik, DFMAbstract : This thesis describes the investigation of photonic crystals as a substrate in microstrip phased array antennas. Alumina with a relative dielectric constant of 9.6 is used as substrate to obtain miniaturization of the components in the high-frequency range. READ MORE