Characterization of InGaAsP materials by ultrahigh intensity post-ionization mass spectrometry: Relative sensitivity factors for zinc versus bulk constituents
Abstract:The first relative sensitivity factors (RSF) for detecting the major and dopant elements of optical materials by ultrahigh intensity post-ionization (UHIPI) mass spectrometry are determined. The post-ionization is performed using a single laser wavelength with intensities greater than 10 14 W͞cm 2 . Zn-implanted InP and In 0.4 Ga 0.1 As 0.3 P 0.2 are used to investigate the photoionization of sputtered atoms and molecules. Under optimal conditions, the UHIPI RSF's for atomic singly charged In, Ga, and Zn are n… Show more
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