Georg F Albrecht from 250 River St UNIT 230, Santa Cruz, CA 95060, age 77

Microchannel Cooled Edge Cladding To Establish An Adiabatic Boundary Condition In A Slab Laser
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US Patent:

6738399, May 18, 2004
Filed:

May 17, 2001
Appl. No.:

09/861495
Inventors:

Georg F. Albrecht - Livermore CA
Raymond J. Beach - Livermore CA
Richard W. Solarz - Danville CA
Assignee:

The United States of America as represented by the United States Department of Energy - Washington DC
International Classification:

H01S 304
US Classification:

372 35, 372 11, 372 33
Abstract:

The present invention provides an edge cladding for a slab laser, the edge cladding comprising a cooling channel system therein.

Solid State Laser Disk Amplifer Architecture: The Normal-Incidence Stack
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US Patent:

6847673, Jan 25, 2005
Filed:

Jun 21, 2002
Appl. No.:

10/177339
Inventors:

C. Brent Dane - Livermore CA, US
Georg F. Albrecht - Livermore CA, US
Mark D. Rotter - San Ramon CA, US
Assignee:

The Regents of the University of California - Oakland CA
International Classification:

H01S 3091
H01S 3092
US Classification:

372 75, 372 70, 372 66, 372 92, 372101, 372 99, 372 69, 372 36
Abstract:

Normal incidence stack architecture coupled with the development of diode array pumping enables the power/energy per disk to be increased, a reduction in beam distortions by orders of magnitude, a beam propagation no longer restricted to only one direction of polarization, and the laser becomes so much more amendable to robust packaging.

Optical Monitor For Observing Turbulent Flow
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US Patent:

51219859, Jun 16, 1992
Filed:

Jan 17, 1991
Appl. No.:

7/642577
Inventors:

Georg F. Albrecht - Livermore CA
Thomas R. Moore - Rochester NY
Assignee:

The United States of America as represented by the United States
Department of Energy - Washington DC
International Classification:

G01N 2141
US Classification:

356128
Abstract:

The present invention provides an apparatus and method for non-invasively monitoring turbulent fluid flows including anisotropic flows. The present invention uses an optical technique to filter out the rays travelling in a straight line, while transmitting rays with turbulence induced fluctuations in time. The output is two dimensional, and can provide data regarding the spectral intensity distribution, or a view of the turbulence in real time. The optical monitor of the present invention comprises a laser that produces a coherent output beam that is directed through a fluid flow, which phase-modulates the beam. The beam is applied to a temporal filter that filters out the rays in the beam that are straight, while substantially transmitting the fluctuating, turbulence-induced rays. The temporal filter includes a lens and a photorefractive crystal such as BaTiO. sub. 3 that is positioned in the converging section of the beam near the focal plane.

Zigzag Laser With Reduced Optical Distortion
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US Patent:

53053451, Apr 19, 1994
Filed:

Sep 25, 1992
Appl. No.:

7/950559
Inventors:

Georg F. Albrecht - Livermore CA
Brian Comaskey - Stockton CA
Steven B. Sutton - Manteca CA
Assignee:

The United States of America as represented by the United States
Department of Energy - Washington DC
International Classification:

H01S 309
US Classification:

372 69
Abstract:

The architecture of the present invention has been driven by the need to solve the beam quality problems inherent in Brewster's angle tipped slab lasers. The entrance and exit faces of a solid state slab laser are cut perpendicular with respect to the pump face, thus intrinsically eliminating distortion caused by the unpumped Brewster's angled faces. For a given zigzag angle, the residual distortions inherent in the remaining unpumped or lightly pumped ends may be reduced further by tailoring the pump intensity at these ends.

High Energy Bursts From A Solid State Laser Operated In The Heat Capacity Limited Regime
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US Patent:

55263720, Jun 11, 1996
Filed:

Aug 5, 1994
Appl. No.:

8/286372
Inventors:

Georg Albrecht - Livermore CA
E. Victor George - Livermore CA
William F. Krupke - Pleasanton CA
Walter Sooy - Pleasanton CA
Steven B. Sutton - Manteca CA
Assignee:

The United States of America as represented by the United States
Department of Energy - Washington DC
International Classification:

H01S 304
US Classification:

372 69
Abstract:

High energy bursts are produced from a solid state laser operated in a heat capacity limited regime. Instead of cooling the laser, the active medium is thermally well isolated. As a result, the active medium will heat up until it reaches some maximum acceptable temperature. The waste heat is stored in the active medium itself. Therefore, the amount of energy the laser can put out during operation is proportional to its mass, the heat capacity of the active medium, and the temperature difference over which it is being operated. The high energy burst capacity of a heat capacity operated solid state laser, together with the absence of a heavy, power consuming steady state cooling system for the active medium, will make a variety of applications possible. Alternately, cooling takes place during a separate sequence when the laser is not operating. Industrial applications include new material working processes.

Diode Pumping Of Average-Power Solid State Lasers: 21-22 January 1993, Los Angeles, California
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Author:

Georg F. Albrecht
ISBN #:

0819410926

From Musical Folklore To Twelve Tone Technique: Memoirs Of A Musician Between East And West
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Author:

Georg von Albrecht
ISBN #:

0810849690

Vom Volkslied Zur Zwolftontechnik: Schriften Und Erinnerungen Eines Musikers Zwischen Ost Und West
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Author:

Georg von Albrecht
ISBN #:

3820454802