Practical laser induced breakdown spectroscopy unit

Details Practical laser induced breakdown spectroscopy unit Practical laser induced breakdown spectroscopy unit

2008-07-01

2008-07-01

Toatley, Jr., Gregory J (Department: 2877)

Optics: measuring and testing

By dispersed light spectroscopy

With sample excitation

Reexamination Certificate

active

07394537

ABSTRACT:
An apparatus for performing laser-induced breakdown spectroscopy comprises a handheld unit with a pump laser and a controller. A combination of a solid laser medium and a Q-switch receive a laser beam from said pump laser. Focusing optics focus laser pulses from said combination to a focal spot at a sample. Light collection optics collect light from plasma induced of sample material by focused laser pulses. A spectrometer receives collected light and produces information describing its spectral distribution. A power source delivers electric power to other parts of the apparatus. The pump laser, combination, focusing optics, light collection optics, spectrometer and power source are parts of said handheld unit.

REFERENCES:
patent: 4550381 (1985-10-01), Waechter et al.
patent: 4986658 (1991-01-01), Kim
patent: 5379103 (1995-01-01), Zigler
patent: 5583634 (1996-12-01), Andre et al.
patent: 5608520 (1997-03-01), Fleming
patent: 5781289 (1998-07-01), Sabsabi et al.
patent: 5798832 (1998-08-01), Hnilica et al.
patent: 5946089 (1999-08-01), Duer
patent: 6407811 (2002-06-01), Snyder et al.
patent: 6424416 (2002-07-01), Gross et al.
patent: 6700660 (2004-03-01), Sabsabi et al.
patent: 6741345 (2004-05-01), Sabsabi et al.
patent: 6762835 (2004-07-01), Zhang et al.
patent: 6762836 (2004-07-01), Benicewicz et al.
patent: 6801595 (2004-10-01), Grodzins et al.
patent: 6836325 (2004-12-01), Maczura et al.
patent: 6909505 (2005-06-01), Lucas et al.
patent: 6986739 (2006-01-01), Warren et al.
patent: 7016035 (2006-03-01), Wu et al.
patent: 7092087 (2006-08-01), Kumar et al.
patent: 7236243 (2007-06-01), Beecroft et al.
patent: 2004/0200341 (2004-10-01), Walters et al.
patent: 2006/0078019 (2006-04-01), Wang et al.
patent: 2006/0262302 (2006-11-01), Eklin
patent: 2006/0262900 (2006-11-01), Sipila et al.
patent: 2007/0296967 (2007-12-01), Gupta et al.
DeLucia, F.C., Jr.; Samuels, A.C.; Harmon, R.S.; Walters, R.A.; McNesby, K.L.; LaPointe, A.; Winkle, R.J.,Jr.; and Miziolek, A.W.; Laser-Induced Breakdown Spectroscopy (LIBS): A Promising Versatile Chemical Sensor Technology for Hazardous Material Detection, Aug. 2006, IEEE Sensors Journal, vol. 5, No. 4, pp. 681-689.
Harmon, R.S.; DeLucia, F.C., Jr.; LaPointe, A.; and Miziolek, A.W.; Man-Portable LIBS for Landmine Detection, Jun. 2006, Proc. Of SPIE, vol. 6217, p. 62170l-1-62170l-7.
Bohling, C.; Scheel, D.; Hohmann, K.; Schade, W.; Reuter, M.; and Holl, G.; Fiber-optic laser sensor for mine detection and verification, Jun. 2006, Applied Optics, vol. 45, No. 16.
Walters, Roy A. (Powerpoint, Unknown Material Analysis in Less Than A Second: Man Portable LIBS, Ocean Optics, Oct. 6, 2006, http://www. researchcaucus.org/presentations/default.asp) comprises a visual presentation of the HP-LIBS device. The webpage showing the date presented is included.
Pierce, et al. (Pierce, W. and Christian, S.M., Portable LIBS Instrumentation can identify trace levels of environmental pollutants, Photonik International, 2006, Originally published in German in Photonik Jan. 2005) comprises a suitcase sized portable LIBS device.
Applied Photonics, Ltd., Portable LIBS Instrument Model No. 0117—Users Manual, Nov. 2006, p. 1-10.
Pierce, W.; Christian, S.M.; Myers, M.J.; Myers, J.D.:, Field-testing for environmental pollutants using briefcase sized portable LIBS system; LIBS—2004, 3rd International Conference on Laser Induced Plasma Spectroscopy and Applications, 2004, p. 1-14.
B.L. Volodin, S.V. Dolgy, E.D. Melnik, E. Downs, J. Shaw and V.S. Ban: “Wavelength Stabilization and Spectrum Narrowing of High-Power Multimode Laser Diodes and Arrays by Use of Volume Bragg Gratings”.

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