Products / Terahertz Generators and DetectorsElectro-Optic DAST CrystalsPhotonics

DAST and other high-quality organic crystals are produced and optically prepared in the facilities of Rainbow Photonics in Switzerland.
4-N,N-dimethylamino-4’-N’-methyl-stilbazolium tosylate


High quality crystals
Cut and polished for various applications
Large nonlinear optical susceptibilities (d11 > 1000 pm/V)
Large electro-optic coefficients (r11 = 92 pm/V)
Phase matching for THz-wave generation between 720 nm and 1650 nm
Electro-Optic DAST Crystals

– Efficient THz generation and detection from 0.3 to >16 THz
– Fast electro-optic modulation
– Optical parametric generation
– Efficient frequency doubling of 1.55 μm radiation


Please download the PDF for further information on this product

Further Reading

“Photonic applications with the organic nonlinear optical crystal DAST”; M. Jazbinsek, L. Mutter, P. Günter. IEEE Journal of selected topics in Quantum Electronics 14, 1298-1311 (2008).

“Generation of terahertz pulses through optical rectification in organic DAST crystals: Theory and experiment”; A. Schneider, M. Neis, M. Stillhart, B. Ruiz, R. U. A. Khan, and P. Günter, J. Opt. Soc. Am. B 23, 1822-1835 (2006).

“High Efficiency Generation and Detection of Terahertz Pulses Using Laser Pulses at Telecommunication Wavelengths”; A. Schneider, M. Stillhart and P. Günter, Opt. Express 14, 5376-5384 (2006).

“Strong-field single-cycle THz pulses generated in an organic crystal”; C. P. Hauri, C. Ruchert, C. Vicario, F. Ardana, Appl. Phys. Lett. 99, 161116 (2011).