ODENDOR

In principle LVM spectroscopy is not the only way to evidence the presence of hydrogen in bulk materials not intentionally doped with hydrogen. Shinar et al. (1986) attributed optically detected electron nuclear double resonance (ODENDOR) lines to hydrogen associated with a PGa antisite-related defect in GaP. However the identification of these ODENDOR lines is not unambiguous as it has been recently proposed that these lines could be P-related (Watkins, 1989). 

Electron nuclear double resonance (ENDOR) experiments have been performed by Koschnick and co-workers [59] and by Glaser and coworkers [60,61], with both groups employing optical detection of the EPR (i.e. ODENDOR). 

ODENDOR ODLTS ODMR OICTS OLCAO OMVPE OSC optically detected electron nuclear double resonance optical deep level transient spectroscopy optically detected magnetic resonance optical isothermal capacitance transient spectroscopy orthogonalised linear combination of atomic orbitals organo-metallic vapour phase epitaxy on-surface-cracking... 

Fig. 25. ODENDOR spectra observed at 2°K, monitoring the A center at 514.5 nm. Micro-wave powers (a) 640 mW, (b) 35 mW, (c) 0 mW. [From Sano el al. (1983). Copyright North-Holland Publ. Co., Amsterdam, 1983.]...

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