Electro-optic dual-comb spectroscopy for green house gas sensing - 2026_IDR_DFIS_19

id="offer-description" class="ecl-u-type-heading-2 ecl-u-mt-none ecl-u-mb-l">Offer Description The research program combines electro-optic comb technology and nonlinear optics to develop a robust dual comb-spectroscopy platform operating in the mid-IR for sensitive detection of multiple species of interest for net-zero targets. The platform will rely on a robust nonlinear laser source where two phase-coherent electro-optic frequency combs generated in a fully-fibered arrangement at ~1.55 μm will be down-converted in the mid-infrared through a difference-frequency generation process seeded with a widely tunable high-power optical parametric oscillator. The use of suitable orientation-patterned Gallium Arsenide with fan-out gratings will enable milliwatt power for the two combs and tunability across most part of the fingerprint region, from 3 to 11 m. Specifically, the research activity will concern: 1) the synthesis of dual electro-optic combs in the near-infrared with bandwidth by up to 60 GHz, using both a compact single-sideband modulator and a more standard approach based on. Where to apply Website https://aunicalogin.polimi.it/aunicalogin/getservizio.xml?id_servizio=1079 . Requirements. Additional Information . Eligibility criteria. Relevance and pertinence of the publications, theses and scientific products attached to the research programme covered by the Fellowship (up to 30 points). Relevance and pertinence of previous research activities and work experience, if any,