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Dr. Fred F. Froehlich
Senior Advisory Optical Engineer
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Publications (4)
Proceedings Article | 30 July 1997 Paper
Rigorous numerical modeling of novel optical data storage systems
Joshua Kann, Tomas Milster, Fred Froehlich, Richard Ziolkowski, Justin Judkins
Proceedings Volume 3109, (1997) https://doi.org/10.1117/12.280695
KEYWORDS: Systems modeling, Data modeling, Data storage, Thermal modeling, Electromagnetism, Finite-difference time-domain method, Optical storage, Polarization, Radio propagation, Numerical modeling
Proceedings Article | 13 January 1993 Paper
High-resolution optical lithography with a near-field scanning subwavelength aperture
Proceedings Volume 1751, (1993) https://doi.org/10.1117/12.138895
KEYWORDS: Lithography, Near field optics, Near field, Gold, Optical lithography, Photoresist materials, Scanning tunneling microscopy, Near field scanning optical microscopy, Aluminum, Coating
Proceedings Article | 1 July 1991 Paper
Differential spot-size focus servo
Tomas Milster, Mark Wang, Fred Froehlich, J. Kann, Jeffrey Treptau, James Erwin
Proceedings Volume 1499, (1991) https://doi.org/10.1117/12.45899
KEYWORDS: Sensors, Servomechanisms, Signal detection, Optical storage, Diffraction, Objectives, Motion models, Signal generators, Magneto-optics, Oscilloscopes
Proceedings Article | 1 July 1991 Paper
Micro-optic lens for data storage
Tomas Milster, Robert Trusty, Mark Wang, Fred Froehlich, James Erwin
Proceedings Volume 1499, (1991) https://doi.org/10.1117/12.45900
KEYWORDS: Monochromatic aberrations, Microlens, Optical storage, Data storage, Holography, Diffraction, Micro optics, Objectives, Wavefronts, Spherical lenses
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