Study of two-photon excitation spectra of organic compounds absorbing in the UV region

Journal Article · Fri Dec 31 00:00:00 EST 2004 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2004V034N12ABEH002724· OSTI ID:21470659

Babenko, V A; Sychev, Andrei A ^[1]

---

1. P.N. Lebedev Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)

A method is proposed for recording two-photon excitation (TPE) spectra of organic compounds with the help of picosecond pulses from a dye laser tunable in the range from 550 to 640 nm. The TPE spectra are obtained for organic scintillators and drugs: paraterphenyl in liquid and solid phases, stilbene single crystal and Streptocid powder, having a one-photon absorption band in the region from 270 to 350 nm. It is shown that the vibronic structure in the TPE spectra of these compounds is independent of their aggregate state and is an individual characteristic of each of the compounds. (active media)

• OSTI ID: 21470659
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 34, Issue 12; Other Information: DOI: 10.1070/QE2004v034n12ABEH002724; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION SPECTRA
DRUGS
DYE LASERS
EXCITATION
LIQUIDS
MONOCRYSTALS
PHOSPHORS
PHOTONS
POWDERS
PULSES
SOLIDS
STILBENE
ULTRAVIOLET SPECTRA
AROMATICS
BOSONS
CRYSTALS
ELEMENTARY PARTICLES
ENERGY-LEVEL TRANSITIONS
FLUIDS
HYDROCARBONS
LASERS
LIQUID LASERS
MASSLESS PARTICLES
ORGANIC COMPOUNDS
SPECTRA