Theorems on complete electromagnetic coherence in the space-time domain

✍ Scribed by Tero Setälä; Jani Tervo; Ari T Friberg

• Book ID: 103870757
• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 223 KB
• Volume: 238
• Category: Article
• ISSN: 0030-4018
• DOI: 10.1016/j.optcom.2004.04.045

✦ Synopsis

Making use of a recently introduced degree of coherence of random electromagnetic fields, we show that some wellknown results on second-order scalar coherence theory in the space-time domain hold within the electromagnetic context as well. In particular, we prove that for statistically stationary electromagnetic waves the following three properties are equivalent: (i) the field is completely coherent in the space-time domain, (ii) the field is monochromatic, and (iii) the electric mutual coherence tensor factors in the two spatial variables and is periodic in the time difference.