Implementation of temporal ptychography algorithm, I$^2$PIE, for improved single-beam coherent anti-Stokes Raman scattering measurements
| Autor: | Thomas Feurer, Alexander M. Heidt, Hans-Martin Frey, Ruan Viljoen, Pieter Neethling, Dirk Spangenberg, Erich G. Rohwer |
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| Rok vydání: | 2020 |
| Předmět: |
Physics
530 Physics FOS: Physical sciences Statistical and Nonlinear Physics 02 engineering and technology 021001 nanoscience & nanotechnology 620 Engineering 01 natural sciences Atomic and Molecular Physics and Optics Ptychography Supercontinuum 010309 optics symbols.namesake Four-wave mixing Multiphoton intrapulse interference phase scan 0103 physical sciences Dispersion (optics) symbols 0210 nano-technology Algorithm Ultrashort pulse Raman scattering Photonic-crystal fiber Physics - Optics Optics (physics.optics) |
| Zdroj: | Viljoen, Ruan; Neethling, Pieter; Spangenberg, Dirk; Heidt, Alexander; Frey, Hans-Martin; Feurer, Thomas; Rohwer, Erich (2020). Implementation of temporal ptychography algorithm, i 2 PIE, for improved single-beam coherent anti-Stokes Raman scattering measurements. Journal of the Optical Society of America. B-optical physics, 37(11), A259-A265. Optical Society of America 10.1364/JOSAB.399207 |
| DOI: | 10.48550/arxiv.2009.04734 |
| Popis: | We present an improvement on the signal-to-background of single-beam coherent anti-Stokes Raman scattering (SB-CARS) spectroscopy measurements for systems employing ultrafast supercontinuum sources based on all-normal dispersion photonic crystal fibers. Improvements to the signal-to-background arise in the use of a new pulse-reconstruction algorithm based on temporal ptychography, I$^2$PIE. A simple SB-CARS strategy is used to measure the spectrum of para-xylene, where the supercontinuum pulses used are compressed using multiphoton intrapulse interference phase scan (MIIPS) and, for the first time to the best of our knowledge, I$^2$PIE using the same single-beam setup. With the I$^2$PIE implementation, the signal-to-background is improved by nearly a factor of 4 in comparison with MIIPS. More notably, the integrated SB-CARS spectral intensity is increased by a factor of 6.5. Comment: Copyright 2020 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited |
| Databáze: | OpenAIRE |
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