Abstract
AbstractIn the paper of Ojha et al. (Microwave Opt Technol Lett 42 (2004), 82–87), an erroneous definition of the effective refractive index neff in a photonic band gap (PBG) structure is used. The effective refractive index neff is defined as a function of the group velocity; this suffers from two main errors: firstly, the concept of group velocity is not useful in regions of anomalous dispersion, and this is just the region of interest for the calculus in Ojha et al. (Microwave Opt Technol Lett 42 (2004), 82–87) of neff of the PBG structure, and secondly, in any case the refractive index has to be defined in terms of the phase velocity. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 44: 302–303, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20617
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
