Sökning: "optical limiting"
Visar resultat 1 - 5 av 77 avhandlingar innehållade orden optical limiting.
1. Cavity enhanced optical sensing
Sammanfattning : An optical cavity comprises a set of mirrors between which light can be reflected a number of times. The selectivity and stability of optical cavities make them extremely useful as frequency references or discriminators. LÄS MER
2. Synthesis and optical characterization of optical power limiting platinum(II) acetylides
Sammanfattning : Interactions between light and a molecule can result in reversible or irreversible changes in properties of both the light and the molecule. Of the many known interactions, nonlinear absorption is a process in which an intense light signal, for instance from a laser, can be moderated. LÄS MER
3. Nonlinear Absorbing platinum(II) Acetylides for Optical Power Limiting Applications
Sammanfattning : During the past few decades, laser technology has had a strong impact on our society, providing important contributions to materials processing, data storage, communications, medicine, and defense applications. However, the progress in laser technology has also brought about the development of harmful portable high‐power lasers and tactical laser weapons. LÄS MER
4. Nonlinear materials for optical power limiting : characterization and modelling
Sammanfattning : High power laser pulses can be a threat to optical sensors, including the human eye. Traditionally this threat has been alleviated by colour filters that block radiation in chosen wavelength ranges. LÄS MER
5. Characterization of domain switching and optical damage properties in ferroelectrics
Sammanfattning : Nonlinear optical frequency conversion is one of the most important key techniques in order to obtain lasers with wavelengths targeted for specific applications. In order to realize efficient and tailored lasers, the quasi-phase-matching (QPM) approach using periodically-poled ferroelectric crystals is getting increasingly important. LÄS MER