Essays about: "Gaussian beams"
Showing result 1 - 5 of 8 essays containing the words Gaussian beams.
-
1. Active stabilisation of a micro-sized fibre cavity using tilt locking to enable quantum operations on single ions
University essay from Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionenAbstract : In this thesis, the tilt locking scheme is applied to create an error signal that monitors length changes in a fibre-based microcavity. To find a robust and precise locking technique is an essential step towards quantum operations on single rare-earth ions doped in microcrystals. Quantum computing and information is a frontier of modern physics. READ MORE
-
2. Strain Field Modelling using Gaussian Processes
University essay from Uppsala universitet/Avdelningen för systemteknikAbstract : This report deals with reconstruction of strain fields within deformed materials. The method relies upon data generated from Bragg edge measurements, in which information is gained from neutron beams that are sent through the sample. READ MORE
-
3. Selective Plane Illumination Microscopy Using Non-spreading Airy Beams
University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/AtomfysikAbstract : Recently a new field of microscopy has emerged, known as selective plane illumination microscopy (SPIM). Using a SPIM setup the sample is illuminated with a thin light sheet from the side. The selective plane illumination overcomes many problems that conventional microscopes have. READ MORE
-
4. Approximation of antenna patterns by means of a combination of Gaussian beams
University essay from Institutionen för datavetenskap, fysik och matematik, DFMAbstract : Modeling of electromagnetic wave propagation in terms of Gaussian beams (GBs) has been considered in recent years. The incident radiation is expanded in terms of GBs by means of the point matching method. The simultaneous equations can be solved directly to produce excitation coefficients that generate the approximate pattern of a known antenna. READ MORE
-
5. Spatial mode engineering in mid-infrared optical parametric oscillators
University essay from KTH/LaserfysikAbstract : The purpose of this thesis was to investigate the possibilities of enhancing the temporal and spatial coherence of parametric devices in the mid-infrared spectrum by exploiting inherent coherence selection of Bessel beams. Several optical parametric oscillators (OPO) were constructed and characterized for various types of resonators and pump lasers. READ MORE