Authentication and Testing of Banknotes Using Laser Multiphoton Electron Extraction Spectroscopy (MEES)
In laser multiphoton electron extraction spectroscopy (MEES), the photo-charges extracted from a surface by a pulsed laser houston texans shorts beam are recorded as a function of laser wavelength.We report the first application of this spectroscopy to banknotes.Various banknotes from different countries, authentic and copyright, have been tested.T