Dynamic method for changing the operation of a multiple-pass...

Details Dynamic method for changing the operation of a multiple-pass... Dynamic method for changing the operation of a multiple-pass...

2006-01-24

2006-01-24

Lauchman, Layla G. (Department: 2877)

Optics: measuring and testing

By dispersed light spectroscopy

With monochromator structure

C356S326000

Reexamination Certificate

active

06989898

ABSTRACT:
Inverting optics are used to invert, with respect to the dispersion plane, the wavefront of a monochromator employing a beam making more than one pass through the dispersing medium. Further, the inverting functionality can be turned-on or turned-off, thereby reversibly converting between additive and subtractive monochromator architectures. Inversion reversal is accomplished by reorienting the inverting optics orthogonally about an axis coaxial with the beam, either back and forth or monotonically, or by displacing portions or all of the inverting optics into and out of the beam. Examples of inverting optics include Dove prisms and equivalent multiple all-reflective surfaces. The system and method can be applied to two-pass and other multi-pass monochromators and to dual and other multiple serial monochromator configurations using diffraction gratings or other dispersing elements.

REFERENCES:
patent: 6646740 (2003-11-01), Braun et al.
Czerny, M. et al., “Uber den Astigmatismus bei Spiegelspektrometern,” Z. Physik, 61, (1930), p. 792-797.
Littman, M. G. et al., “Spectraqlly Narrow Pulsed Dye Laser Without Beam Expander,” Applied Optics, vol. 17, No. 14, ( Jul. 15, 1978), p. 2224-2227.
Born, M., et al., “Principles of Optics,” 6th Edition, Pergamon Press, (1980), p. 244.
“Agilent 8614×B Optical Spectrum Analyzer Family Technical Specifications,” Agilent Technologies, Inc., (Feb. 8, 2002), pp. 1-11.

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