Accession Number : ADA231042


Title :   Comment on 'Single Pentacene Molecules Detected by Fluorescence Excitation in a P-Terphenyl Crystal'


Descriptive Note : Interim rept.


Corporate Author : IBM ALMADEN RESEARCH CENTER SAN JOSE CA


Personal Author(s) : Moerner, W E ; Ambrose, W P


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a231042.pdf


Report Date : 10 Dec 1990


Pagination or Media Count : 10


Abstract : Using highly efficient Fluorescence excitation spectroscopy of individual pentacene molecular impurities in p-terphenyl crystals, we have observed that some pentacene defects exhibit spontaneous spectral jumps in their resonance frequency at 1.5 K, with a jump rate independent of laser power. In addition, the low-power limiting linewidth for single pentacene absorbers reaches the lifetime limit of 7.8 MHz at 1.5 K.


Descriptors :   *LOW POWER , MOLECULES , EXCITATION , RATES , EFFICIENCY , SPECTRAL LINES , IMPURITIES , RESONANT FREQUENCY , LIMITATIONS , ABSORBERS(MATERIALS) , POWER , MOLECULAR PROPERTIES , FLUORESCENCE , LASERS


Subject Categories : Atomic and Molecular Physics and Spectroscopy


Distribution Statement : APPROVED FOR PUBLIC RELEASE