title: Versatile digital lock-in detection technique: application to spectrofluorometry and other fields.
abstract: A digital lock-in detection technique which overcomes some practical limitations of the analog lock-in amplifiers is described. An example of implementation is given, based on multichannel pulse analyzers. Some representative results are reported for two typical application fields of lock-in techniques, namely optical spectrometry and semiconductor profiling with C-V techniques. Advantages and limitation of the technique are discussed as well as adaptation to various modulation waveforms.
authors.affiliation: Centro di Studio per l'Elettronica Quantistica e la Strumentazione Elettronica del C.N.R., Istituto di Fisica del Politecnico, Milano, Italy.
authors.forename: S
authors.initials: S
authors.lastname: Cova
authors.forename: A
authors.initials: A
authors.lastname: Longoni
authors.forename: I
authors.initials: I
authors.lastname: Freitas