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Second‐Harmonic and Terahertz Generation in a Prussian‐Blue Analogue
Author(s) -
OuldHamouda Amine,
Iazzolino Antonio,
Tokoro Hiroko,
Ohkoshi ShinIchi,
Freysz Eric
Publication year - 2018
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201700980
Subject(s) - prussian blue , terahertz radiation , chemistry , second harmonic generation , hysteresis , phase (matter) , atmospheric temperature range , optoelectronics , analytical chemistry (journal) , optics , condensed matter physics , materials science , electrode , physics , organic chemistry , laser , electrochemistry , meteorology
Second‐harmonic and terahertz generation is performed in the Rb 0.94 Mn[Fe(CN) 6 ] 0.98 · 0.3H 2 O Prussian‐blue analogue. Second‐harmonic generation experiments are carried out between 1100 and 1700 nm and within the hysteresis loop of this compound. In the low‐ and high‐temperature phases, our measurements indicate that the effective second‐order nonlinear component χ (2) of this material is small, compared with α‐quartz. However, in the high‐temperature phase and close to 1100 nm, its χ (2) is enhanced by more than one order of magnitude. Terahertz generation indicates that in this frequency range, the effective χ (2) of this compound is high and comparable with that of ZnTe. Finally, we demonstrate that within the thermal hysteresis loop of this Prussian‐blue analogue, one can modulate the χ (2) by photoswitching it from the low‐temperature to the high‐temperature phase.