Print Email Facebook Twitter Singlet oxygen luminescence detection with a fiber-coupled superconducting nanowire single-photon detector Title Singlet oxygen luminescence detection with a fiber-coupled superconducting nanowire single-photon detector Author Gemmell, N.R. McCarthy, A. Liu, B. Tanner, M.G. Dorenbos, S.N. Zwiller, V. Patterson, M.S. Buller, G.S. Wilson, B.C. Hadfield, R.H. Faculty Applied Sciences Department QN/Quantum Nanoscience Date 2013-02-21 Abstract Direct monitoring of singlet oxygen (1O2) luminescence is a particularly challenging infrared photodetection problem. 1O2, an excited state of the oxygen molecule, is a crucial intermediate in many biological processes. We employ a low noise superconducting nanowire single-photon detector to record 1O2 luminescence at 1270 nm wavelength from a model photosensitizer (Rose Bengal) in solution. Narrow band spectral filtering and chemical quenching is used to verify the 1O2 signal, and lifetime evolution with the addition of protein is studied. Furthermore, we demonstrate the detection of 1O2 luminescence through a single optical fiber, a marked advance for dose monitoring in clinical treatments such as photodynamic therapy. To reference this document use: http://resolver.tudelft.nl/uuid:c3a89777-0d06-4e65-a7c3-5af5b1bb5da3 DOI https://doi.org/10.1364/OE.21.005005 Publisher Optical Society of America ISSN 1094-4087 Source http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-4-5005 Source Optics Express, 21 (4), 2013 Part of collection Institutional Repository Document type journal article Rights © 2013 Optical Society of America Files PDF Dorenbos_2013.pdf 1.06 MB Close viewer /islandora/object/uuid:c3a89777-0d06-4e65-a7c3-5af5b1bb5da3/datastream/OBJ/view