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Norman Kurnit Phones & Addresses

  • 301 Los Arboles Dr, Santa Fe, NM 87501 (505) 988-3506
  • Los Alamos, NM

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Position: Owner

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Degree: High school graduate or higher

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Norman Kurnit Photo 1

Owner

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Location:
Santa Fe, NM
Industry:
Research
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Publications

Us Patents

Combination Ring Cavity And Backward Raman Waveguide Amplifier

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US Patent:
43896170, Jun 21, 1983
Filed:
Mar 13, 1981
Appl. No.:
6/243309
Inventors:
Norman A. Kurnit - Santa Fe NM
Assignee:
The United States of America as represented by the United States
Department of Energy - Washington DC
International Classification:
H03F 700
H03F 705
H01S 330
US Classification:
330 43
Abstract:
A combination regenerative ring and backward Raman waveguide amplifier and a combination regenerative ring oscillator and backward Raman waveguide amplifier which produce Raman amplification, pulse compression, and efficient energy extraction from the CO. sub. 2 laser pump signal for conversion into a Stokes radiation signal. The ring cavity configuration allows the CO. sub. 2 laser pump signal and Stokes signal to copropagate through the Raman waveguide amplifier. The backward Raman waveguide amplifier configuration extracts a major portion of the remaining energy from the CO. sub. 2 laser pump signal for conversion to Stokes radiation. Additionally, the backward Raman amplifier configuration produces a Stokes radiation signal which has a high intensity and a short duration. Adjustment of the position of overlap of the Stokes signal and the CO. sub. 2 laser pump signal in the backward Raman waveguide amplifiers alters the amount of pulse compression which can be achieved.

Resonantly Enhanced Four-Wave Mixing

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US Patent:
40951219, Jun 13, 1978
Filed:
Apr 14, 1977
Appl. No.:
5/787415
Inventors:
Richard F. Begley - Los Alamos NM
Norman A. Kurnit - Santa Fe NM
Assignee:
The United States of America as represented by the United States
Department of Energy - Washington DC
International Classification:
H03F 704
US Classification:
307 883
Abstract:
A method and apparatus for achieving large susceptibilities and long interaction lengths in the generation of new wavelengths in the infrared spectral region. A process of resonantly enhanced four-wave mixing is employed, utilizing existing laser sources, such as the CO. sub. 2 laser, to irradiate a gaseous media. The gaseous media, comprising NH. sub. 3, CH. sub. 3 F, D. sub. 2, HCl, HF, CO, and H. sub. 2 or some combination thereof, are of particular interest since they are capable of providing high repetition rate operation at high flux densities where crystal damage problems become a limitation.

Stokes Injected Raman Capillary Waveguide Amplifier

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US Patent:
42220114, Sep 9, 1980
Filed:
Oct 3, 1978
Appl. No.:
5/948267
Inventors:
Norman A. Kurnit - Santa Fe NM
Assignee:
The United States of America as represented by the United States
Department of Energy - Washington DC
International Classification:
H03F 705
US Classification:
330 45
Abstract:
A device for producing stimulated Raman scattering of CO. sub. 2 laser radiation by rotational states in a diatomic molecular gas utilizing a Stokes injection signal. The system utilizes a cryogenically cooled waveguide for extending focal interaction length. The waveguide, in conjunction with the Stokes injection signal, reduces required power density of the CO. sub. 2 radiation below the breakdown threshold for the diatomic molecular gas. A Fresnel rhomb is employed to circularly polarize the Stokes injection signal and CO. sub. 2 laser radiation in opposite circular directions. The device can be employed either as a regenerative oscillator utilizing optical cavity mirrors or as a single pass amplifier. Additionally, a plurality of Raman gain cells can be staged to increase output power magnitude. Also, in the regenerative oscillator embodiment, the Raman gain cell cavity length and CO. sub.

Shifting Of Infrared Radiation Using Rotational Raman Resonances In Diatomic Molecular Gases

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US Patent:
41941705, Mar 18, 1980
Filed:
Nov 13, 1978
Appl. No.:
5/960409
Inventors:
Norman A. Kurnit - Santa Fe NM
Assignee:
The United States of America as represented by the United States
Department of Energy - Washington DC
International Classification:
H01S 322
US Classification:
331 945N
Abstract:
A device for shifting the frequency of infrared radiation from a CO. sub. 2 laser by stimulated Raman scattering in either H. sub. 2 or D. sub. 2. The device of the preferred embodiment comprises an H. sub. 2 Raman laser having dichroic mirrors which are reflective for 16. mu. m radiation and transmittive for 10. mu. m, disposed at opposite ends of an interaction cell. The interaction cell contains a diatomic molecular gas, e. g. , H. sub. 2, D. sub. 2, T. sub. 2, HD, HT, DT and a capillary waveguide disposed within the cell. A liquid nitrogen jacket is provided around the capillary waveguide for the purpose of cooling. In another embodiment the input CO. sub. 2 radiation is circularly polarized using a Fresnel rhomb. lambda. /4 plate and applied to an interaction cell of much longer length for single pass operation.

Multistaged Stokes Injected Raman Capillary Waveguide Amplifier

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US Patent:
42245770, Sep 23, 1980
Filed:
Nov 3, 1978
Appl. No.:
5/957630
Inventors:
Norman A. Kurnit - Santa Fe NM
Assignee:
The United States of America as represented by the United States
Department of Energy - Washington DC
International Classification:
H03F 700
US Classification:
330 45
Abstract:
A multistaged Stokes injected Raman capillary waveguide amplifier for providing a high gain Stokes output signal. The amplifier uses a plurality of optically coupled capillary waveguide amplifiers and one or more regenerative amplifiers to increase Stokes gain to a level sufficient for power amplification. Power amplification is provided by a multifocused Raman gain cell or a large diameter capillary waveguide. An external source of CO. sub. 2 laser radiation can be injected into each of the capillary waveguide amplifier stages to increase Raman gain. Devices for injecting external sources of CO. sub. 2 radiation include: dichroic mirrors, prisms, gratings and Ge Brewster plates. Alternatively, the CO. sub. 2 input radiation to the first stage can be coupled and amplified between successive stages.

Ring Cavity For A Raman Capillary Waveguide Amplifier

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US Patent:
43946232, Jul 19, 1983
Filed:
Jan 27, 1981
Appl. No.:
6/229023
Inventors:
Norman A. Kurnit - Santa Fe NM
International Classification:
H01S 330
US Classification:
330 43
Abstract:
A regenerative ring amplifier and regenerative ring oscillator which function to feed back a portion of the Stokes signal to complete the ring cavity. The ring cavity configuration allows the CO. sub. 2 laser pump signal and Stokes signal to copropagate through the Raman capillary waveguide amplifier. A Raman capillary waveguide amplifier is also provided in the return leg of the ring cavity to increase gain without increasing the round trip time. Additionally, the ring cavity can be designed such that the amplifier Stokes signal is synchronous with the mode-locked spikes of the incoming CO. sub. 2 laser pump signal.

Raman Scattering In A Whispering Mode Optical Waveguide

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US Patent:
43385702, Jul 6, 1982
Filed:
Jun 8, 1981
Appl. No.:
6/271061
Inventors:
Norman A. Kurnit - Santa Fe NM
Assignee:
The United States of America as represented by the United States
Department of Energy - Washington DC
International Classification:
H03F 700
US Classification:
330 46
Abstract:
A device and method for Raman scattering in a whispering mode optical waveguide. Both a helical ribbon and cylinder are disclosed which incorporate an additional curvature. rho. p for confining the beam to increase intensity. A Raman scattering medium is disposed in the optical path of the beam as it propagates along the waveguide. Raman scattering is enhanced by the high intensities of the beam and long interaction path lengths which are achieved in a small volume.

Optical Pumping In A Whispering Mode Optical Waveguide

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US Patent:
44398603, Mar 27, 1984
Filed:
Aug 11, 1981
Appl. No.:
6/291885
Inventors:
Norman A. Kurnit - Santa Fe NM
Assignee:
The United States of America as represented by the United States
Department of Energy - Washington DC
International Classification:
H01S 3091
US Classification:
372 70
Abstract:
A device and method for optical pumping in a whispering mode optical waveguide. Both a helical ribbon and cylinder are disclosed which incorporate an additional curvature for confining the beam to increase intensity. An optical pumping medium is disposed in the optical path of the beam as it propagates along the waveguide. Optical pumping is enhanced by the high intensities of the beam and long interaction pathlengths which are achieved in a small volume.
Norman A Kurnit from Santa Fe, NM, age ~85 Get Report