Search for dissertations about: "non-linear polarisation"

Found 3 swedish dissertations containing the words non-linear polarisation.

2. 1. Growth and Characterisation of Non-linear Ferroelectric Heterostructures

   Author : Khaled Khamchane; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES;

   Abstract : High dielectric constant or ferroelectric materials are needed for a range of devices, non-volatile ferroelectric computer memories, NVFRAMs, microwave devices utilising the non-linear polarisation as a function of electric field, or other microwave applications. High dielectric constant and low losses can be achieved in single crystals of ferroelectrics. READ MORE

4. 2. Time resolved laser spectroscopy

   Author : Karin Ekvall; KTH; []
   Keywords : non-linear polarisation; third and fifth order susceptibility; cross phase modulation; transient absorption femtosecond spectroscopy;

   Abstract : .... READ MORE

5. 3. Upconversion Detection for Improved Nonlinear Mid-infrared Spectroscopy in Flames

   Author : Rasmus Lyngbye Pedersen; Förbränningsfysik; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; infrared; upconversion; degenerate four wave mixing; hydrogen cyanide; polarisation spectroscopy;

   Abstract : This thesis deals with the addition of upconversion detection to non-linear mid-infrared laser spectroscopy techniques. The techniques investigated here are degenerate four wave mixing (DFWM) and infrared polarization spectroscopy (IRPS). READ MORE