title: Leaky polarizing beam splitter with adjustable leak ratio for operation in the wavelength range of 440-690 nm.
abstract: We discuss the optomechanical design and fabrication of a novel wideband (440-690-nm), leaky polarizing beam splitter with an adjustable leak ratio. This beam splitter is an important component of a multiwavelength dynamic testbed that we have constructed for testing optical disks. The multilayer thin-film structure of the beam splitter is essentially a stacked pair of narrow-band dielectric reflectors that have been fine tuned for optimal performance. The characteristics of the fabricated device are in good agreement with our theoretical calculations.
authors.forename: L
authors.initials: L
authors.lastname: Cheng
authors.forename: C L
authors.initials: CL
authors.lastname: Bartlett
authors.forename: J K
authors.initials: JK
authors.lastname: Erwin
authors.forename: M
authors.initials: M
authors.lastname: Mansuripur