Skip to Main Content
Optics for Engineers
book

Optics for Engineers

by Charles A. DiMarzio
August 2011
Intermediate to advanced content levelIntermediate to advanced
564 pages
20h 45m
English
CRC Press
Content preview from Optics for Engineers
216 OPTICS FOR ENGINEERS
The value at half maximum is obtained when
F sin
2
(
nk
)
= 1, (7.118)
so that
k =
2π
λ
=
2πf
c
= arcsin
1
F
. (7.119)
The full width at half maximum (FWHM) is
δf = 2
c
2π
arcsin
1
F
. (7.120)
More commonly this result is written in terms of the free spectral range
δf
FSR
=
2
π
arcsin
1
F
. (7.121)
If we were to measure a spectrum that consisted of two waves closely spaced in frequency,
we would be able to determine that two frequencies were present if they were sufciently far
apart relative to δf , and we would see them as a single wavelength if not. The wavelength
difference at which it is just possible to distinguish the two would depend on
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Quantum Optics for Engineers

Quantum Optics for Engineers

F.J. Duarte
Nonimaging Optics

Nonimaging Optics

Roland Winston, Juan C. Minano, Pablo G. Benitez, With contributions by Narkis Shatz and John C. Bortz
Practical Optics

Practical Optics

Naftaly Menn
Molded Optics

Molded Optics

Michael Schaub, Jim Schwiegerling, Eric Fest, R. Hamilton Shepard, Alan Symmons

Publisher Resources

ISBN: 9781439807255