%0 Journal Article %1 HegenbarthSteinmann14 %A Hegenbarth, Robin %A Steinmann, Andy %A Mastel, Stefan %A Amarie, Sergiu %A Huber, Andreas %A Hillenbrand, Rainer %A Sarkisov, Sergey %A Giessen, Harald %D 2014 %I IOP Publishing %J Journal of Optics %K myown %N 9 %P 094003 %R 10.1088/2040-8978/16/9/094003 %T High-power femtosecond mid-IR sources for s-SNOM applications %U https://doi.org/10.1088/2040-8978/16/9/094003 %V 16 %X We demonstrate two high-power femtosecond mid-infrared (mid-IR) sources that can be combined with a scattering-type scanning near-field optical microscope (s-SNOM). The first one is based on difference frequency generation (DFG) between the two signal wavelengths of a high-power dual-signal-wavelength periodically poled lithium niobate (PPLN) optical parametric oscillator (OPO) and covers the spectral range from 10.5 μm to 16.5 μm. The second one is an AgGaSe2 OPO pumped by the PPLN OPO. With this mid-IR OPO we obtained up to 113 mW average idler power at 4857 nm with more than 40 cm-1 FWHM spectral width. We demonstrate mid-IR near-field spectra and near-field images that we obtained by combining the broadband femtosecond mid-IR DFG source with an s-SNOM.

@article{HegenbarthSteinmann14, abstract = {We demonstrate two high-power femtosecond mid-infrared (mid-IR) sources that can be combined with a scattering-type scanning near-field optical microscope (s-SNOM). The first one is based on difference frequency generation (DFG) between the two signal wavelengths of a high-power dual-signal-wavelength periodically poled lithium niobate (PPLN) optical parametric oscillator (OPO) and covers the spectral range from 10.5 μm to 16.5 μm. The second one is an AgGaSe2 OPO pumped by the PPLN OPO. With this mid-IR OPO we obtained up to 113 mW average idler power at 4857 nm with more than 40 cm-1 FWHM spectral width. We demonstrate mid-IR near-field spectra and near-field images that we obtained by combining the broadband femtosecond mid-IR DFG source with an s-SNOM.}, added-at = {2021-02-23T13:10:21.000+0100}, author = {Hegenbarth, Robin and Steinmann, Andy and Mastel, Stefan and Amarie, Sergiu and Huber, Andreas and Hillenbrand, Rainer and Sarkisov, Sergey and Giessen, Harald}, biburl = {https://puma.ub.uni-stuttgart.de/bibtex/2395a609a94ec484e4c10811bfaf6724c/andy.steinmann}, doi = {10.1088/2040-8978/16/9/094003}, interhash = {37743e5eb41e4f328cab8e4a1be79270}, intrahash = {395a609a94ec484e4c10811bfaf6724c}, journal = {Journal of Optics}, keywords = {myown}, month = sep, number = 9, pages = 094003, publisher = {IOP Publishing}, timestamp = {2021-02-23T13:03:06.000+0100}, title = {High-power femtosecond mid-IR sources for s-SNOM applications}, url = {https://doi.org/10.1088/2040-8978/16/9/094003}, volume = 16, year = 2014 }