An organic crystal with an exceptionally large optical second-harmonic coefficient: 2-methyl-4-nitroaniline
- 1 April 1979
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 50 (4), 2523-2527
- https://doi.org/10.1063/1.326248
Abstract
We have grown and measured the optical second‐harmonic coefficient dijk of the new nonlinear crystal 2‐methyl‐4‐nitroaniline (MNA). We find that the dijk are very large with d12 being 5.8 times larger than d31 of LiNbO3 giving a birefringence phase‐matching figure of merit d2/n3 which is 45 times larger than LiNbO3. The other coefficient d11 is 40 times larger than LiNbO3, giving a huge figure of merit which is 2000 larger than LiNbO3.Keywords
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