Sökning: "partial coherence in imaging"

Hittade 3 avhandlingar innehållade orden partial coherence in imaging.

1. 1. Partially Coherent Laser Radiation - Modeling and Application to Optical Microlithography

   Författare :Christer Rydberg; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; microlithography; coherence; temporal speckle; partial coherence; optical propagation; number of degrees of freedom; dynamic speckle;

   Sammanfattning : This work deals with a type of light that has properties somewhere between blackbody radiation and conventional laser light; such light is referred to as partially coherent. One example is the radiation from the pulsed excimer laser, which is used in the manufacturing of most of the worlds integrated circuits. LÄS MER

3. 2. Axicon imaging by scalar diffraction theory

   Författare :Anna Burvall; KTH; []
   Nyckelord :axicons; diffractive optics; coherence; asymptotic methods; communication modes; information content; inverse problems;

   Sammanfattning : Axicons are optical elements that produce Bessel beams,i.e., long and narrow focal lines along the optical axis. Thenarrow focus makes them useful ine. LÄS MER

4. 3. 3D X-ray microscopy: image formation, tomography and instrumentation

   Författare :Mårten Selin; Hans Hertz; Chris Jacobsen; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; X-ray microscopy; image formation theory; partial coherence in imaging; wave propagation; tomography; instrumentation; Fysik; Physics;

   Sammanfattning : Tomography in soft X-ray microscopy is an emerging technique for obtaining quantitative 3D structural information about cells. One of its strengths, compared with other techniques, is that it can image intact cells in their near-native state at a few 10 nm’s resolution, without staining. LÄS MER