@article {Piepmeier:1972:0003-7028:100,
	author = "Piepmeier, E.H.",
	title = "A Polarization-Independent Pulsed-Laser Energy Monitoring System with Analog Readout",
	journal = "Applied Spectroscopy",
	volume = "26",
	number = "1",
	year = "1972",
	abstract = "Laser beam monitors commonly use a single optical plate placed at an angle to the beam to divert a fraction of the laser beam to a detector. If the beam is not polarized or is polarized in one direction only, the use of a single plate causes no sampling error for an energy measurement. However, if different lasing modes have different polarizations, each mode may be reflected to a different extent due to the nonzero angle of incidence. For instance, Fresnel's laws of reflection predict that a glass plate with a refractive index of 1.55 at a 45° angle of incidence reflects 10.4% of parallel polarized light and 1.1% of perpendicularly polarized light at each surface, assuming that the reflections at the two surfaces of the plate do not interfere with each other.",
	pages = "100-102",
	url = "http://www.ingentaconnect.com/content/sas/sas/1972/00000026/00000001/art00016",
	doi = "doi:10.1366/000370272774352551",
	keyword = "Lasers and Masers, Energy monitoring systems"
}