Enhanced optical limiting in derivatized fullerenes
Laura SmilowitzChemical Science and Technology Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545Haiyan WangInstitute for Polymers and Organic Solids, University of California, Santa Barbara, Santa Barbara, California 93106Fred WudlInstitute for Polymers and Organic Solids, University of California, Santa Barbara, Santa Barbara, California 93106D. McBranchChemical Science and Technology Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545Victor I. KlimovChemical Science and Technology Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545Jeanne M. RobinsonChemical Science and Technology Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545Aaron KoskeloChemical Science and Technology Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545M. GrigorovaChemical Science and Technology Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545Benjamin R. MattesChemical Science and Technology Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
1996en
ABI
Annotatsiya
We have observed enhanced optical limiting behavior in solutions of a derivatized fullerene (phenyl-C(61)-butyric acid cholesteryl ester) from 532 to 700 nm. Transient absorption measurements determined the spectral and temporal regions of interest for optical limiting in C(60) and in C(60) derivatives that are due to a reverse saturable absorption mechanism and predicted enhanced limiting at longer wavelengths. Intensity-dependent transmission measurements made at several wavelengths confirmed these results. The increased solubility and the broadened ground-state absorption of the functionalized C(60) make it suitable for use as an optical limiter in the red and the near infrared.
Hali tarjima qilinmagan
Identifikatorlar
Iqtiboslar va manbalar
2 ta iqtibos0 ta foydalanilgan manba