USA As Represented by Secretary of the Navy

Other

The United States of America As Represented by the United States

Aaron N Fletcher

George E McManis, Iii

Dan E Bliss

Melvin H Miles

Ronald A Henry

Peter R Hammond

Ronald L Atkins

Dwight A Fine

Joel M Kauffman

Charles D Stanifer

Everett M Bens

Richard H Knipe

A semi-passive Q-switch can be used at 1.00 to 1.80 micrometers laser radiation, in combination with a laser to give an effective high peak power output.

Semi-passive Q-switch

Oxazole dyes and certain quaternary salts of these compounds having a formula as follows: ##STR1## are useful as visible-wavelength lasing dyes. These dyes are useful in solution with non-interferring polar solvents, such as low molecular weight alcohols, H.sub.2 O and mixtures thereof, to form lasing media useful in dye lasers.

Oxazole dyes

Laser dyes of the class of 2-substituted oxazolo [4,5-b] pyridines which lase when flashlamp or nitrogen laser pumped.

2-substituted oxazolo [4,5-b] pyridine laser dyes

A thermal battery cell with a fiberglass wrapping and facial pressure as a eans for wetting the calcium anode to prevent deflagration or flashing using either a homogeneous LiClO.sub.4 and AgNO.sub.3 electrolyte or a non-homogeneous electrolyte arrangement of LiCl, LiNO.sub.3 and AgNO.sub.3.

Thermal cell non-deflagration design

An elemental lithium-lithium alloy composite anode capable of high current ensity discharge for battery applications.

Lithium composite anode

An ionic liquid composition for the electrode position of metals and more particularly to compositions using non-aqueous organic electrolytic solutions.

Ionic liquid compositions for electrodeposition

A method for the electrodeposition of metals utilizing non-aqueous nitrate-amide melts as room temperature ionic liquids.

Method for electrodeposition of metals

A process for the preparation of a non-aqueous ionic liquid melt comprising a solvent which is composed of one or more amides or imides, an electrolyte that contains one or more nitrate salts and an anhydrous metal nitrate or metal halide.

Preparation of ionic liquids for electrodeposition

A method of obtaining a long-lived flashpumped laser dye with an output equivalent to commercial dyes and a low threshold of lasing using the N-methyl tosylate salt of 2-(4-pyridyl)-5-(4-methoxyphenyl) oxazole.

Long-lived laser dye

A remote reservoir for automatically dispersing a liquid electrolyte mixt into the cells of a battery upon activation.

Method and device for filling the cells of a battery with electrolyte

The effective lasing lifetime of coumarin 102 in 50:50 ethylene glycol is gnificantly extended by increasing the rate of pumping and photolysis, with a flashlamp in a laser system having a pyrex ultraviolet filter and an inert cover gas.

Photolytic improvement of dye laser lifetimes

An ambient temperature thermal battery having two relatively high temperature melting electrolytes which form a low melting temperature electrolyte upon activation.

Ambient temperature thermal battery

A thermally activated electrochemical cell utilizes a lithium-boron anode and a molten nitrate electrolyte selected from the group consisting of lithium nitrate, a mixture of lithium nitrate and sodium nitrate, a mixture of lithium nitrate and potassium nitrate, and a mixture of lithium nitrate and sodium nitrate with potassium nitrate, to provide improved cell electrical performance. The electrolyte is contained on a fiberglass separator and the electrolyte adjacent to the cathode may contain silver nitrate as well. Current densities over 300 mA/cm.sup.2 with a usable temperature range of over 150.degree. C. have been obtained. Anode open circuit potentials of about 3.2 V were found with little polarization at 100 mA/cm.sup.2 and with very slight polarization at 300 mA/cm.sup.2.

Lithium-boron anodes in nitrate thermal battery cells

A thermally activated electrochemical cell utilizes an anode constructed of lemental lithium and transition metal powder. Iron is disclosed to be the best mode of transition metal powder. The cell uses nitrate salt electrolyte containing lithium nitrate and silver nitrate as a cathode enhancer. Electrical performance of this cell includes open circuit potentials of approximately +3.4 volts at 300.degree. C. and thermal activation within the range of 123.degree. to 465.degree. C. Current densities as high as 1,250 mA/cm.sup.2 have been demonstrated.

High performance molten nitrate cell

The effective lasing lifetime of laser dyes including coumarin dyes are significantly extended by the use of an inert cover gas for the laser dye solution such as argon in combination with the employment of a glass filter such as Pyrex disposed between the pumping flash lamp and the dye laser cavity capable of absorbing electromagnetic radiation of about 300 nanometers or shorter wavelength.

Growing community of inventors

Ridgecrest, CA, United States of America

Aaron N Fletcher