New four-channel polarimeter for time-resolved ellipsometry

Journal Article · Thu Oct 01 04:00:00 EDT 1987 · Opt. Lett.; (United States)

DOI:https://doi.org/10.1364/OL.12.000766· OSTI ID:5980384

Jellison, Jr, G E

A new four-channel partial polarimeter was designed for use in time-resolved ellipsometry measurements. The device outputs four parallel, equispaced beams from a single input beam. By detecting and digitizing the intensities of these four beams, the intensity, as well as two of the three elements of the reduced Stokes vector can be determined. Since there are no moving parts to the polarimeter, time resolution is limited only by the response time of the photodetectors and the digitizers. The linear array of output beams is ideal for streak-camera detection, yielding a potential time resolution of --1 psec. A beam splitter is described that separates the input beam into two beams, which are parallel to the input beam and whose polarizations are nearly the same as the input beam. In addition, the polarimeter is achromatic, operating in the wavelength region from 220 to 1100 nm.

• Research Organization: Solid State Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 5980384
• Journal Information: Opt. Lett.; (United States), Journal Name: Opt. Lett.; (United States) Vol. 12:10; ISSN OPLED
• Country of Publication: United States
• Language: English

Related Subjects

440300* -- Miscellaneous Instruments-- (-1989)
47 OTHER INSTRUMENTATION
BEAM OPTICS
DESIGN
ELLIPSOMETRY
IMAGE PROCESSING
MEASURING METHODS
NATIONAL ORGANIZATIONS
ORNL
POLARIMETERS
PROCESSING
RESOLUTION
STOKES PARAMETERS
TIME RESOLUTION
TIMING PROPERTIES
US AEC
US DOE
US ERDA
US ORGANIZATIONS