Search for dissertations about: "axicons"

Found 2 swedish dissertations containing the word axicons.

  2. 1. Asymptotic methods in design and characterization ofdiffractive axicons

    Author : Anna Thaning; KTH; []
    Keywords : axicons; diffractive optics; coherence; asyptotic methods;

    Abstract : This thesis addresses the subject of diffractive axicons inpartially coherent or oblique illumination. Design andcharacterization of the axicons are performed using asymptoticwave optics, employing the stationary-phase method to obtainapproximations of the diffraction integrals. READ MORE

  4. 2. Axicon imaging by scalar diffraction theory

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

    Abstract : 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. READ MORE