Flexible and broadly tunable infrared light source based on shaped sub-10-fs pulses for a multimodal microscopy setup
We present a versatile approach for mid-infrared spectroscopy through the flexible control of a difference-frequency-generation (DFG) process by femtosecond (fs) pulse shaping and spectral focusing. Based on a broadband sub-10-fs oscillator, the spectral position and spectral resolution can be indep...
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| Main Authors: | , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
23 April 2018
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| In: |
Optics letters
Year: 2018, Volume: 43, Issue: 9, Pages: 2054-2057 |
| ISSN: | 1539-4794 |
| DOI: | 10.1364/OL.43.002054 |
| Online Access: | Verlag, Volltext: https://doi.org/10.1364/OL.43.002054 Verlag: https://www.osapublishing.org/ol/abstract.cfm?uri=ol-43-9-2054 
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| Author Notes: | Lukas Brückner, Niklas Müller, and Marcus Motzkus |
| Summary: | We present a versatile approach for mid-infrared spectroscopy through the flexible control of a difference-frequency-generation (DFG) process by femtosecond (fs) pulse shaping and spectral focusing. Based on a broadband sub-10-fs oscillator, the spectral position and spectral resolution can be independently selected within the molecular fingerprint region of more than 2000  cm−1. A spectral resolution better than 20  cm−1 can be achieved, which depends solely on the pulse shaper configuration. An absorption experiment on a polystyrene reference sample finally validates the concept and opens the door for an additional modality in nonlinear multimodal microscopy setups. |
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| Item Description: | Gesehen am 15.10.2019 |
| Physical Description: | Online Resource |
| ISSN: | 1539-4794 |
| DOI: | 10.1364/OL.43.002054 |