Sökning: "Moiré interferometry"

Hittade 4 avhandlingar innehållade orden Moiré interferometry.

  1. 1. Ferroelectric domain engineering and characterization for photonic applications

    Detta är en avhandling från Stockholm : KTH

    Författare :Simonetta Grilli; KTH.; [2006]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; LiNbO; KTiOPO; interferometry; digital holography; electric field poling; electro-optic materials; holographic lithography; ferroelectric domains; nanostructures; microstructures; TECHNOLOGY Engineering physics Optical physics; TEKNIKVETENSKAP Teknisk fysik Optisk fysik;

    Sammanfattning : Lithium niobate (LiNbO3) and KTiOPO4 (KTP) are ferroelectric crystals of considerable interest in different fields of optics and optoelectronics. Due to its large values of the nonlinear optical, electro-optic (EO), piezoelectric and acousto-optical coefficients, LiNbO3 is widely used for laser frequency conversion using the quasiphase matching (QPM) approach where the sign of nonlinearity has been periodically modulated by electric field poling (EFP). LÄS MER

  2. 2. Composites studied by moiré methods and high speed photography

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :L. Gunnar Melin; [1997]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Experimentell mekanik; Experimental Mechanics;

    Sammanfattning : Fibre composites are today used as construction material in a growing number of applications. Carbon fibres/epoxy matrix composites are employed in high performance applications as aircrafts where a high stiffness/weight ratio is important. LÄS MER

  3. 3. Healing of tympanic membrane perforations - an experimental study

    Detta är en avhandling från Stockholm : Karolinska Institutet, Department of Clinical Neuroscience

    Författare :Anisur Rahman; Karolinska Institutet.; Karolinska Institutet.; [2007]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Embryonic stem cells; Healing; Immunosuppressive; Laser; Mesenchymal stem cells; Moiré interferometry; Myringotomy; Perforation; Tympanic membrane;

    Sammanfattning : Most acute tympanic membrane perforations heal spontaneously without any residual complication, whereas a fraction transforms into a chronic perforation. The current treatment of a chronic perforation is surgical repair, which is a costly, time consuming and uncomfortable procedure particularly for the pediatric patients. LÄS MER

  4. 4. Stiffness changes of the tympanic membrane in otitis media

    Detta är en avhandling från Stockholm : Karolinska Institutet, Department of Clinical Neuroscience

    Författare :Christina Larsson; Karolinska Institutet.; Karolinska Institutet.; [2002]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Tympanic membrane; pars flaccida; stiffness; otitis media with effusion; purulent otitis media; cholesteatoma; moire interferometry; tympanometry; gerbil.;

    Sammanfattning : Acute purulent otitis media and otitis media with effusion, are common diseases in childhood. Years later some of the children will get "complications", such as retraction pockets and cholesteatoma, that often need advanced surgical treatment. LÄS MER