Jiménez-Banzo Ana, Ragàs Xavier, Kapusta Peter, Nonell Santi
Grup d'Enginyeria Molecular, Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta 390, 08017, Barcelona, Spain.
Photochem Photobiol Sci. 2008 Sep;7(9):1003-10. doi: 10.1039/b804333g. Epub 2008 Jun 25.
Two recent advances in optoelectronics, namely novel near-IR sensitive photomultipliers and inexpensive yet powerful diode-pumped solid-state lasers working at kHz repetition rate, enable the time-resolved detection of singlet oxygen (O2(a1Deltag)) phosphorescence in photon counting mode, thereby boosting the time-resolution, sensitivity, and dynamic range of this well-established detection technique. Principles underlying this novel approach and selected examples of applications are provided in this perspective, which illustrate the advantages over the conventional analog detection mode.
光电子学领域最近的两项进展，即新型近红外敏感光电倍增管和工作在千赫兹重复率下的廉价但强大的二极管泵浦固态激光器，使得能够在光子计数模式下对单线态氧（O2(a1Deltag)）磷光进行时间分辨检测，从而提高了这种成熟检测技术的时间分辨率、灵敏度和动态范围。本文阐述了这种新方法的基本原理并给出了一些应用实例，说明了其相对于传统模拟检测模式的优势。
