Sökning: "WKB method"

Hittade 2 uppsatser innehållade orden WKB method.

1. 1. Periodic and Non-Periodic Filter Structures in Lasers

   Master-uppsats, KTH/Matematik (Avd.)

   Författare :Leo Enge; [2020]
   Nyckelord :Laser; Grating Filters; Perturbation Theory; WKB Approximation; Bi-cubic Splines; Laser; optiska filter; störningsteori; WKB-approximation; bi-kubiska splines;

   Sammanfattning : Communication using fiber optics is an integral part of modern societies and one of the most important parts of this is the grating filter of a laser. In this report we introduce both the periodic and the non-periodic grating filter and discuss how there can be resonance in these structures. LÄS MER

3. 2. The Phase-Integral Method, The Bohr-Sommerfeld Condition and The Restricted Soap Bubble : with a proposition concerning the associated Legendre equation

   Kandidat-uppsats, Uppsala universitet/Institutionen för fysik och astronomi

   Författare :Hazhar Ghaderi; [2011]
   Nyckelord :Bohr-Sommerfeld quantization condition; phase-integral method; hydrogen atom energy levels; isotropic harmonic oscillator energy levels; theorem concerning parameters of the associated Legendre equation; apsidal angle; apsidal angle in semi-classical theory; WKB method; JWKB method; Old quantum mechanics; old quantum theory; Langer modification; half-integral quantization condition; Platform function; platform function of Yngve and Thidé; Fröman Fröman theory; Fröman Fröman method;

   Sammanfattning : After giving a brief background on the subject we introduce in section two the Phase-Integral Method of Fröman & Fröman in terms of the platform function of Yngve and Thidé. In section three we derive a different form of the radial Bohr-Sommerfeld condition in terms of the apsidal angle of the corresponding classical motion. LÄS MER