Interpretation of Rings in the Far-Field Pattern of Optical Masers
- 1 August 1963
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 2 (8)
- https://doi.org/10.1143/jjap.2.445
Abstract
It has been believed that the interference rings in the far-field pattern of the radiation of an optical maser is due to the oscillations in off-axis modes. It is shown here that the rings in the far-field pattern are produced by the interference of radiations from atoms in a filamentary region of oscillation with an axial mode. The angle of maximum intensity for the m-th order interference is approximated by µθ m =(µλ/L)½(m+1/2)½, m=1, 2, … and the zero-th order appears in a direction θ0=0. Here µ is the index of refraction and L is the length of the maser. The result agrees fairly well with experimental values obtained from ruby masers.Keywords
This publication has 6 references indexed in Scilit:
- Cylindrical Mode of Oscillation in a Ruby Optical MaserJapanese Journal of Applied Physics, 1963
- Stimulated and Fluorescent Optical Emission in Ruby from 4.2° to 300°K: Zero-Field Splitting and Mode StructureJournal of Applied Physics, 1962
- Relationship between the Near Field Characteristics of a Ruby Laser and Its Optical QualityApplied Optics, 1962
- Mode Control in Ruby Optical Masers by Means of Elastic DeformationApplied Optics, 1962
- Mode Characteristics and Coherence in Optical Ruby MasersNature, 1961
- Stimulated Optical Emission in Fluorescent Solids. II. Spectroscopy and Stimulated Emission in RubyPhysical Review B, 1961