Accession Number : ADD004815

Title :   Substituted -6,7,8,9-Tetrahydro-Pyrido-and 2H-Pyrano (2,3-b) (1,8) Naphthyridines, Stable, Efficient Laser Dyes.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Hammond,Peter R ; Henry,Ronald A ; Trias,John A ; Schimitschek,Erhard J

Report Date : 20 Mar 1978

Pagination or Media Count : 23

Abstract : In 1966 researchers first noted stimulated emissions from organic dye materials. Since that time, a wide array of organic dyes have been investigated and developed for use in what are now known as dye lasers, wherein an organic compound in solution replaces a gas or crystal (e.g., ruby) or the like as the active optical element. Laser dyes are so-called because they typically possess auxochromic groups such as oxygen and nitrogen and conjugated double bonds characteristics of classic organic dyes.

Descriptors :   *Patent applications, *Laser materials, *Dye lasers, Naphthalenes, Substitution reactions, Molecular structure, Heterocyclic compounds, Aromatic compounds, Laser beams, Synthesis(Chemistry)

Subject Categories : Organic Chemistry
      Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE