Measurement of sub-pulse-width temporal delays via spectral interference induced by weak value amplification
Tipo de documentoArtículo
Fecha de publicación2014-01-27
Condiciones de accesoAcceso abierto
Proyecto de la Comisión EuropeaPHORBITECH - A Toolbox for Photon Orbital Angular Momentum Technology (EC-FP7-255914)
We demonstrate experimentally a scheme to measure small temporal delays, much smaller than the pulse width, between optical pulses. Specifically, we observe an interference effect, based on the concepts of quantum weak measurements and weak value amplification, through which a sub-pulse-width temporal delay between two femtosecond pulses induces a measurable shift of the central frequency of the pulse. The amount of frequency shift, and the accompanying losses of the measurement, can be tailored by postselecting different states of polarization. Our scheme requires only spectrum measurements and linear optics elements, hence greatly facilitating its implementation. Thus it appears to be a promising technique for measuring small and rapidly varying temporal delays.
CitaciónSalazar-Serrano, L. [et al.]. Measurement of sub-pulse-width temporal delays via spectral interference induced by weak value amplification. "Physical review A", 27 Gener 2014, vol. 89, p. 012126-1-012126-5.
Versión del editorhttp://link.aps.org/doi/10.1103/PhysRevA.89.012126