Robustness and capabilities of ultrashort laser pulses characterization with amplitude swing
| Autor: | Sola Larrañaga, Iñigo Juan, Alonso Fernández, Benjamín |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Optical metrology
lcsh:Medicine 02 engineering and technology 01 natural sciences Spectral line Article Ultrashort pulses Ultrafast optics 010309 optics Ultrashort laser Optics Robustness (computer science) Pulse measurement 0103 physical sciences Optical techniques lcsh:Science Relative amplitude Ultrafast lasers 2209.10 láseres Physics Multidisciplinary business.industry lcsh:R Swing 021001 nanoscience & nanotechnology Nonlinear system Amplitude Femtosecond lasers 2209 Óptica lcsh:Q 0210 nano-technology business |
| Zdroj: | Scientific Reports, Vol 10, Iss 1, Pp 1-13 (2020) Scientific Reports GREDOS. Repositorio Institucional de la Universidad de Salamanca instname GREDOS: Repositorio Institucional de la Universidad de Salamanca Universidad de Salamanca (USAL) |
| ISSN: | 2045-2322 |
| DOI: | 10.1038/s41598-020-75220-4 |
| Popis: | [EN]In this work we firstly study the influence of different parameters in the temporal characterization of ultrashort laser pulses with the recently developedamplitude swing technique. In this technique, the relative amplitude of two delayed replicas is varied while measuring their second-harmonic spectra. Herewe study the retrieval of noisy traces and the implications of having different delays or phase retardations (relative phases)between the two replicas. Then, we study the capability of the technique to characterize the pulses when the second-harmonic signal is spectrally uncalibrated or incomplete, presenting the analytical calculation of the marginal, which is used to calibrate the traces and to perform the pulse retrievals. We experimentally show the retrieval of different pulses using diverse delays and phase retardationsto perform the amplitude swing trace and demonstrate that, from an uncalibrated trace, both the pulse informationandthe response of the nonlinear process can be simultaneously retrieved.In sum, the amplitude swing technique is shown to be very robust against experimental constraints and limitations, showing a high degree of soundness. Spanish Ministerio de Economía y Competitividad (MINECO) (FIS2017-87970-R, EQC2018-004117-P), Consejería de Educación, Junta de Castilla y León (SA287P18) and FEDER Funds, Fundación General de la Universidad de Salamanca (PC_TCUE18-20_020). |
| Databáze: | OpenAIRE |
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