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Marcelo G. Vivas

Researcher at Universidade Federal de Alfenas

Publications -  57
Citations -  795

Marcelo G. Vivas is an academic researcher from Universidade Federal de Alfenas. The author has contributed to research in topics: Two-photon absorption & Absorption (electromagnetic radiation). The author has an hindex of 17, co-authored 52 publications receiving 641 citations. Previous affiliations of Marcelo G. Vivas include University of São Paulo.

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Nonlinear spectra of ZnO: reverse saturable, two- and three-photon absorption

TL;DR: This work generated tunable 1-kHz repetition rate laser pulses and employed the Z-scan technique to investigate the nonlinear absorption spectrum of ZnO, a large-bandgap material with potential blue-to-UV photonic device applications.
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Study of singlet excited state absorption spectrum of lutetium bisphthalocyanine using the femtosecond Z-scan technique

TL;DR: In this paper, the authors investigated the singlet excited state absorption of lutetium bisphthalocyanine (LuPc2) over a wide spectral range and observed distinct nonlinear absorption behaviors; saturable (SA) and reverse saturable absorption (RSA) was observed below 640 and above 680 nm, while SA occurs around the Q-band region, located around 660 nm.