Amplification of mid-IR continuum for broadband 2D IR spectroscopy
| Autor: | John H. Hack, Nicholas H. C. Lewis, William B. Carpenter, Andrei Tokmakoff |
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| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Optics Letters. 48:960 |
| ISSN: | 1539-4794 0146-9592 |
| Popis: | We report the generation and characterization of microjoule level, broad bandwidth femtosecond pulses in the mid-infrared (MIR) using optical parametric amplification of continuum MIR seed pulses in GaSe. The signal (3 μm) and idler (6 μm) pulses have energies of 6 μJ and 3 μJ with bandwidths of ∼950 cm−1 and 650 cm−1 FWHM and pulse lengths of 34 fs and 80 fs. Broadband 2D IR spectra of O-H and N-H transitions are acquired with the signal beam demonstrating the capabilities of this source for cross peak and line shape measurements. |
| Databáze: | OpenAIRE |
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