Mainz 2017 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 53: Poster: Quantum Optics and Photonics III

Q 53.75: Poster

Thursday, March 9, 2017, 17:00–19:00, P OG2

Efficient high repetition rate difference frequency generation in PPLN for MIR sum frequency microscopy — Christoph Kölbel, •Lukas Ebner, Martin Winterhalder, and Andreas Zumbusch — Universität Konstanz

High repetition rate mid-infrared (MIR) optical parametric oscillators (OPOs) are used for sum frequency generation (SFM) microscopy [1]. In this work, we present an alternative cost and conversion efficient processes to generate ultrashort, bandwidth limited MIR-Laser pulses via difference frequency generation (DFG) in periodically poled Lithium Niobate (PPLN). The use of a synchronised 80 MHz dual output fs-Laser source with a fixed output at 1037 nm and a tunable (680-1300 nm) output allows the generation of MIR-Light between (3,1- 5,5 µm). Based on this source and a collinear excitation geometry we present first sum frequency generation (SFM) microscopy images.

[1]. Raghunathan, V. et al., Optics Letters, 36(19), 3891-3893 (2011).