Waveguide-based optical parametric oscillator for coherent Raman scattering applications: Waveguide-based optical parametric oscillator for coherent Raman scattering...: K. Wallmeier et al.
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| Title: | Waveguide-based optical parametric oscillator for coherent Raman scattering applications: Waveguide-based optical parametric oscillator for coherent Raman scattering...: K. Wallmeier et al. |
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| Authors: | Wallmeier, Kristin1 (AUTHOR) k.wallmeier@uni-muenster.de, Gao, Ming1 (AUTHOR) ming.gao@uni-muenster.de, Lemberger, Nick S.1 (AUTHOR) n.lemberger@uni-muenster.de, Fallnich, Carsten1,2 (AUTHOR) fallnich@uni-muenster.de |
| Source: | Applied Physics B: Lasers & Optics. Mar2025, Vol. 131 Issue 3, p1-10. 10p. |
| Subjects: | Optical parametric oscillators, Raman scattering, Coherent scattering, Physical sciences, Raman microscopy, Four-wave mixing |
| Abstract: | A waveguide-based optical parametric oscillator for coherent Raman scattering applications is presented, exploiting four-wave mixing in a silicon nitride waveguide. Benefiting from its long propagation length of 20 mm in combination with a narrowband pump laser, idler pulses with an energy of up to 210 pJ and a spectral bandwidth down to 11.2 cm - 1 were obtained. By combining these narrowband idler pulses and the residual pump pulses, coherent Raman spectroscopy and microscopy were possible with a signal-to-noise ratio of up to 13.4. Thus, the presented compact and stable waveguide-based light source paves the way towards integrated lab-on-a-chip coherent Raman applications. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | A waveguide-based optical parametric oscillator for coherent Raman scattering applications is presented, exploiting four-wave mixing in a silicon nitride waveguide. Benefiting from its long propagation length of 20 mm in combination with a narrowband pump laser, idler pulses with an energy of up to 210 pJ and a spectral bandwidth down to 11.2 cm - 1 were obtained. By combining these narrowband idler pulses and the residual pump pulses, coherent Raman spectroscopy and microscopy were possible with a signal-to-noise ratio of up to 13.4. Thus, the presented compact and stable waveguide-based light source paves the way towards integrated lab-on-a-chip coherent Raman applications. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 09462171 |
| DOI: | 10.1007/s00340-025-08397-z |
