The authors report phase fluorometrlc measurements using directly amplitude-modulated
670-and 791-nm laser diodes as the excitation source. Fluorescence lifetimes ranging from …

A fluorlmeter employing single photon counting and mode-locked laser excitation was
constructed to test the concept of time-filtered detection. Expressions for a figure of merit and …

We have constructed a phase-modulation fluorometer using a commercially-available
ultraviolet light-emitting diode (UV LED) as an excitation light source. The center wavelength …

Single-frequency phase-resolved fluorometry through single and bifurcated fiber-optic
probes Is used to quantify mixtures of spectrally similar fluorophores. Correlation coefficients …

Using new commercial equipment including a Pockels‐effect light modulating device, a
phase fluorometer with the following characteristics has been constructed: high intensity …

We describe the construction and operation of a cross-correlation phase and modulation
fluorometer which uses the harmonic content of a high repetition rate mode-locked laser as …

The analog electronics commonly found in frequency domain fluorometers are limited to
collecting only a single frequency at a time, and can be a source of systematic errors. We …

A new picosecond to nanosecond phase fluorometer is reported for measurements of
fluorescence lifetime τ f and rotational diffusion time constants τ rot which uses a mode …

The detection limits of fluorescein and riboflavin are determined to be 0.02 and 0.6 parts-per-
trillion, respectively, with the use of a very sensitive fluorometric system (a nitrogen …

We report the design, development, and characterization of a sensitive, time-resolved
fluorescence spectrometer capable of measuring fluorescence spectra and transient decays …