Dr. Michael Jefferson
Research Staff Member at IBM Research - Almaden
SPIE Involvement:
Author | Instructor
Publications (9)

Proceedings Article | 26 March 2007
Proc. SPIE. 6520, Optical Microlithography XX
KEYWORDS: Laser sources, Lithography, Prisms, Interferometers, Solid state lasers, Interferometry, Photoresist materials, Immersion lithography, Semiconducting wafers, Visibility

Proceedings Article | 3 November 2003
Proc. SPIE. 5175, Laser Beam Shaping IV
KEYWORDS: Optical components, Diffraction, Telescopes, Silica, Glasses, Wavefronts, Lens design, Collimation, Aspheric lenses, Chemical elements

SPIE Journal Paper | 1 November 2003
OE Vol. 42 Issue 11
KEYWORDS: Beam shaping, Beam propagation method, Aspheric lenses, Collimation, Geometrical optics, Gaussian beams, Wavefronts, Wave propagation, Ray tracing, Ultraviolet radiation

Proceedings Article | 23 January 2002
Proc. SPIE. 4459, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications VII, and Optical Data Storage
KEYWORDS: Phase conjugation, Holograms, Holography, Lithium niobate, Data storage, Crystals, Multiplexing, Detector arrays, Spatial light modulators, Volume holography

Proceedings Article | 30 October 2001
Proc. SPIE. 4443, Laser Beam Shaping II
KEYWORDS: Gaussian beams, Deep ultraviolet, Lenses, Ultraviolet radiation, Wavefronts, Collimation, Aspheric lenses, Beam shaping, CCD image sensors, Beam propagation method

Showing 5 of 9 publications
Course Instructor
SC565: Introduction to Refractive Laser Beam Shaping Optics
This course covers the design and use of refractive optics to transform the transverse intensity profile of a laser beam. Typically, beam shaping is used to convert the Gaussian profile emitted by a stable resonator or single-mode fiber to a more uniform, flat-top profile, but the formalism used is general enough to accomodate other profile transformations as well. The course describes the advantages of beam shaping and presents an overview of the many possible methods to perform the intensity profile transformation. It procedes to a detailed study of refractive beam shaping, including the choice of a suitable output intensity profile, limitations on beam shaping imposed by diffraction, and the calculation of the necessary aspheric refractive surfaces. Finally, we discuss practical issues pertaining to the use of beam shaping optics, such as input beam preparation, alignment of the beam shaping elements, diagnostics, propagation effects, dispersion, and the resizing and relaying of the output beam.
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