Search for dissertations about: "Nonlinear absorption"

Showing result 1 - 5 of 66 swedish dissertations containing the words Nonlinear absorption.

2. 1. Synthesis and development of compounds for nonlinear absorption of light

   Author : Tomas Kindahl; Bertil Eliasson; Sascha Ott; Umeå universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Platinum acetylide; nonlinear absorption; optical power limiting; oxazole; quantum chemistry calculation; quantum chemical calculation; triplet absorption; organisk kemi; Organic Chemistry; fysikalisk kemi; Physical Chemistry; Quantum Chemistry; kvantkemi;

   Abstract : High-intensity light — for instance that from a laser — can be destructive, not only to the human eye, but also to equipment such as imaging sensors and optical communication devices. Therefore, effective protection against such light is desirable. READ MORE

4. 2. Organic and organometallic compounds for nonlinear absorption of light

   Author : Per Lind; Bertil Eliasson; Adolf Gogoll; Umeå universitet; []
   Keywords : Organic chemistry; Nonlinear absorption; thiophene; platinum complexes; optical limiting; sonogashira coupling reactions; molecular orbital calculations; Organisk kemi; organisk kemi; Organic Chemistry;

   Abstract : The demand for protection of eyes and various types of optical sensors from laser-beam pulses has resulted in the search for optical limiting devices that have the property of being transparent at low intensity of light (normal light), but non-transparent towards high intensity (laser) light. This type of protection may be obtained by using an organic material that displays nonlinear optical (NLO) properties. READ MORE

5. 3. Nonlinear response in engineered optical materials

   Author : Gustav Strömqvist; Valdas Pasiskevicius; Peter Smith; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; nonlinear optics; nonlinear index of refraction; double tungstates; periodic poling; KTiOPO4; quasi-phase matching; parametric down-conversion; mirrorless optical parametric oscillators;

   Abstract : Material and structure engineering are increasingly employed in active optical media,in this context defined as media capable of providing laser or/and optical parametric gain. For laser materials, the main aim of the engineering is to tailor the absorption and emission cross sections in order to optimise the laser performance. READ MORE

6. 4. Application of Mixed-Effect Modeling to Improve Mechanistic Understanding and Predictability of Oral Absorption

   Author : Martin Bergstrand; Mats O Karlsson; Hans Ericsson; Bart Ploeger; Uppsala universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Absorption; magnetic marker monitoring; drug release; IVIVC; pharmacometrics; NONMEM; model diagnostics; pcVPC; pvcVPC; visual predictive check; VPC; BQL; paracetamol; sulfapyridine.; Other pharmacy; Övrig farmaci; Pharmacokinetics and Drug Therapy; Farmakokinetik och läkemedelsterapi;

   Abstract : Several sophisticated techniques to study in vivo GI transit and regional absorption of pharmaceuticals are available and increasingly used. Examples of such methods are Magnetic Marker Monitoring (MMM) and local drug administration with remotely operated capsules. READ MORE

7. 5. Derivation and application of response functions for nonlinear absorption and dichroisms

   Author : Tobias Fahleson; Patrick Norman; Daniel Crawford; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Theoretical spectroscopy; cubic response theory; damped response theory; magnetic circular dichroism; linear birefringence; two-photon absorption; TPA; resonant-inelastic x-ray scattering; RIXS; DALTON program; Teoretisk kemi och biologi; Theoretical Chemistry and Biology;

   Abstract : This thesis is titled ’Derivation and application of response functions for nonlinear absorption and dichroisms’ and was written by Tobias Fahleson at the Division of Theoretical Chemistry & Biology at KTH Royal Institute of Technology in Sweden. It explores and expands upon theoretical means of quantifying a number of nonlinear spectroscopies, including two-photon absorption, resonant inelastic x-ray scattering, Jones birefringence, and magnetic circular dichroism. READ MORE