In the following the quarter wave thickness seems to
the be the fraction of the lower refractive index to
the total refractive index.
 Why/how is this related to the quarter wave
 Why does this wave maxmize the band gap. BEcause the
reflection leading to destructive interference is
maximized at this quarter wave thickness. But how is
the above formula related to the quarter of the
wavelength?
 Thanks much.
 VR Sitaraman 

; We'll make the default d1 equal to the quarter-wave
thickness.  You
; can change that by changing this line, or even
easier, by running:
;       mpb d1=0.3 bandgap1d.ctl
; or whatever.  (define-param is a command to define
parameters that
; can be varied from the command line like this.)
(define-param d1 (/ (sqrt eps2) (+ (sqrt eps1) (sqrt
eps2))))
(define d2 (- 1 d1))



 
____________________________________________________________________________________
Food fight? Enjoy some healthy debate 
in the Yahoo! Answers Food & Drink Q&A.
http://answers.yahoo.com/dir/?link=list&sid=396545367

_______________________________________________
mpb-discuss mailing list
[email protected]
http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/mpb-discuss

Reply via email to