6533b854fe1ef96bd12ade19
RESEARCH PRODUCT
Nonlinear optical properties of low molecular organic glasses formed by triphenyl modified chromophores
Lauma LaipnieceElmars ZarinsKaspars TraskovskisValdis KamparsMārtiņš RutkisValdis KokarsAndrejs Tokmakovssubject
Nonlinear opticalMaterials scienceStereochemistryMolecular glassesThermalPhysical chemistryMoleculeThermal stabilityChromophoreAmorphous phaseExcitationdescription
The series of organic molecular glasses have been studied as possible candidates for nonlinear optical (NLO) applications. Amorphous phase formation of investigated materials is ensured by the presence of bulky triphenyl substituents in molecular structure of NLO chromophores. Linear optical properties as well as NLO coefficients and thermal stability of NLO activity for the 13 molecular materials in glassy thin solid films have been determined. For the benzylidene-1,3-indandione chromophore containing compound the highest d33 value equal to 280 pm/V was measured under the 1064 nm excitation. Among the investigated compounds uppermost achieved thermal sustainability of NLO response was 108 °C. The relationship between number of triphenyl substituents and increased thermal sustainability of nonlinear response was observed.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-08-20 | IOP Conference Series: Materials Science and Engineering |