But a team of physicists at the European Laboratory for Nonlinear Spectroscopy in Florence, Italy, has reported on a new form of oxygen called epsilon-phase O4.
2.
In modern optics experiments, ultrashort laser pulses have been used in a great variety of engineering application and scientific research, for example, biomedical engineering, material science, nonlinear spectroscopy, ultrafast chemistry, etc . Often, these experiments involve using two potentially different input laser pulses, for example, Raman spectroscopy, two-color pump-probe experiments, and non-degenerate four-wave mixing.
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