Nonlinear spectroscopy on a single quantum system: Two-photon absorption of a single molecule

被引：73

作者：

Plakhotnik, T ^{[1
]}

Walser, D ^{[1
]}

Pirotta, M ^{[1
]}

Renn, A ^{[1
]}

Wild, UP ^{[1
]}

机构：

[1] RUSSIAN ACAD SCI,INST SPECT,TROITSK 142092,RUSSIA

来源：

SCIENCE | 1996年 / 271卷 / 5256期

关键词：

D O I：

10.1126/science.271.5256.1703

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Two-photon fluorescence excitation spectra of single diphenyloctatetraene molecules trapped in an n-tetradecane matrix were measured at cryogenic temperatures. The purely electronic zero-phonon line (transition at 444 nanometers) of these single molecules with a width of about 60 megahertz was excited by a continuous-wave, single-mode laser at 888 nanometers. Even though the two-photon absorption cross section is extremely small, a high photon count rate and low background allowed nonlinear spectroscopy to be extended to the single-molecule level. This experiment also suggests the possibility of two-photon single-molecule scanning microscopy.

引用

页码：1703 / 1705

页数：3

共 28 条

[1] DETECTION AND SPECTROSCOPY OF SINGLE PENTACENE MOLECULES IN A PARA-TERPHENYL CRYSTAL BY MEANS OF FLUORESCENCE EXCITATION [J].