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Novel Organic Salts for Nonlinear and Electro-Optics

Aim: Our goal is to develop organic crystals with improved nonlinear optical properties, thermal stability and crystal-growing ability. Approach: Development and synthesis of new organic nonlinear crystals based on strong Coulomb interaction. Kurtz powder technique is used to evaluate the potential of the newly developed salts for second-order nonlinear optics. Impact: Highly stable nonlinear optical materials for frequency conversion, THz-wave generation and ultra-fast electro-optic modulators.

Novel Organic Salts Organic Salts
Examples of stilbazolium salts developed in our laboratory and their space group, order parameter <cos3 θ> and powder second-harmonic generation (SHG) activity at 1.9 μm fundamental wavelength relative to that of DAST powder. In DSDMS, DSNS-1 and DSNS-2 the planar stilbazolium chromophores are oriented perfectly parallel, which is an ideal chromophore orientation for THz-wave generation and electro-optic modulation.

"Molecular Engineering of Stilbazolium Derivatives for Second-Order Nonlinear Optics"
Z. Yang, M. Jazbinsek, B. Ruiz, S. Aravazhi, V. Gramlich and P. Günter, Chem. Mater. 19, 3512 (2007).

"Large-size bulk and thin-film stilbazolium-salt single crystals for nonlinear optics and THz generation"
Z. Yang, L. Mutter, M. Stillhart, B. Ruiz, S. Aravazhi, M. Jazbinsek, A. Schneider, V. Gramlich and P. Günter,
Adv. Funct. Mater. 17, 2018 (2007).
PDF (400 KB)

"Synthesis and Crystal Structure of a New Stilbazolium Salt with Large Second-order Optical Nonlinearity"
B. Ruiz, Z. Yang, V. Gramlich, M. Jazbinsek and P. Günter, J. Mater. Chem. 16, 2839 (2006).
PDF (350 KB)

"Synthesis and Crystal Growth of Stilbazolium Derivatives for Second-Order Nonlinear Optics"
Z. Yang, S. Aravazhi, A. Schneider, P. Seiler, M. Jazbinsek and P. Günter, Adv. Funct. Mater. 15, 1072 (2005).
PDF (290 KB)

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