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Amorphous Molecular Materials for Directed Supercontinuum Generation

Dehnen, Stefanie; Schreiner, Peter R.; Chatterjee, Sangam; Volz, Kerstin; Rosemann, Nils W. 1; Pilgrim, Wolf-Christian; Mollenhauer, Doreen; Sanna, Simone
1 Lichttechnisches Institut (LTI), Karlsruher Institut für Technologie (KIT)

Abstract:

Molecular compounds of the general formula [(RT)4E6] (R=organic or organometallic substituent; T=C, Si, Ge, Sn; E=CH2, S, Se), hence adamantane derivatives and inorganic-organic hybrid compounds based on a heteroadamantane structure exhibit a non-linear optical response upon radiation with a continuous-wave near-infrared laser. The effect depends on the compounds’ habitus, which itself depends on the elemental composition of the cluster core, and on the nature of the organic substituents. A combination of these parameters that cause the material to be intrinsically amorphous leads to supercontinuum generation and thus to the emission of a broad spectrum, potentially appearing as white light. Notably, the emission essentially retains the driving laser's directionality. For crystalline samples, second harmonic generation is observed instead, which points to a close relationship of the optical properties and the intermolecular order. Variation of R, T, and E allows further fine-tuning of the emitted spectra. We present all studies made in regards to these effects and our overarching conclusions derived from them.

Zugehörige Institution(en) am KIT Lichttechnisches Institut (LTI)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 12.2021
Sprache Englisch
Identifikator ISSN: 2367-0932
KITopen-ID: 1000138048
Erschienen in ChemPhotoChem
Verlag Wiley-VCH Verlag
Band 5
Heft 12
Seiten 1033-1041
Vorab online veröffentlicht am 18.08.2021
Nachgewiesen in Dimensions
Web of Science
OpenAlex
Scopus

Verlagsausgabe §
DOI: 10.5445/IR/1000138048
Veröffentlicht am 28.09.2021
Originalveröffentlichung
DOI: 10.1002/cptc.202100130
Scopus
Zitationen: 18
Web of Science
Zitationen: 19
Dimensions
Zitationen: 19
Seitenaufrufe: 120
seit 30.09.2021
Downloads: 159
seit 29.09.2021
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