15. Photodissociation spectroscopy of gas phase clusters and molecules

Technique 

A beam of clusters or molecules, produced by a laser ablation cluster source or electrospray source, and travelling through a vacuum chamber is excited by a laser beam. The fragmentation of the particles is monitored by a time-of-flight mass spectrometer as a function of the excitation wavelength.

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Units

ns laser system (220 – 1400 nm), cluster source, vacuum setup, time-of-flight mass spectrometer.

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Instrument type

Homemade

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Complexity level

High

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Applications

Records the electronic excited states of atomically precise, size selected clusters and/or molecules, isolated in the gas phase