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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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Bibliographische Detailangaben
Hauptverfasser: Brückner, Lukas (VerfasserIn) , Müller, Niklas (VerfasserIn) , Motzkus, Marcus (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 23 April 2018
In: Optics letters
Year: 2018, Jahrgang: 43, Heft: 9, Pages: 2054-2057
ISSN:1539-4794
DOI:10.1364/OL.43.002054
Online-Zugang:Verlag, Volltext: https://doi.org/10.1364/OL.43.002054
Verlag: https://www.osapublishing.org/ol/abstract.cfm?uri=ol-43-9-2054
Volltext
Verfasserangaben:Lukas Brückner, Niklas Müller, and Marcus Motzkus
Beschreibung
Zusammenfassung: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.
Beschreibung:Gesehen am 15.10.2019
Beschreibung:Online Resource
ISSN:1539-4794
DOI:10.1364/OL.43.002054

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