Towards single photon spectroscopy

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Towards single photon spectroscopy

Type: Master thesis
Title: Towards single photon spectroscopy
Author: Vark, Angelique van
Issue Date: 2020
Keywords: Quantum light spectroscopy
single photons
fluorescence spectroscopy
biomicroscopy
GaAs
photobleaching
Abstract: In this thesis I explore the possibility of excitation with a single photon source for biomicroscopy purposes. In biomicroscopy the fluorescent properties of molecules are used to label proteins or molecules of interest. A key limitation is the effect of photobleaching: after some time all fluorescent molecules are irreversibly converted to a dark state. Photobleaching processes involve highly reactive excited states of molecules and formation of radical oxygen. Excitation with single photons represses multiphoton processes and it is therefore expected that this will reduce the photobleaching rate. So far no experiments have been done with bright cavity based single photon sources. If the cavity based single photon source at our disposal is integrated in the microscopy setup, this could be a first test system for single photon microscopy.
Supervisor: Löffler, Wolfgang
Faculty: Faculty of Science
Department: Physics (Master)
Specialisation: Quantum Matter and Optics
ECTS Credits: 3
Handle: http://hdl.handle.net/1887/75412
 

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