| US 7,612,935 B2 | ||
| Third-order optical autocorrelator for time-domain operation at the telecommunication wavelengths | ||
| Gabriel Ramos-Ortiz, Quintas Sn Lorenzo (Mexico); Myoungsik Cha, Punsan (Korea, Republic of); Seth R. Marder, Atlanta, Ga. (US); and Bernard Kippelen, Decatur, Ga. (US) | ||
| Assigned to The Arizona Board of Regents on Behalf of The University of Arizona, Tucson, Ariz. (US) | ||
| Appl. No. 10/557,809 PCT Filed Dec. 19, 2003, PCT No. PCT/US03/37093 § 371(c)(1), (2), (4) Date Dec. 21, 2006, PCT Pub. No. WO2004/109345, PCT Pub. Date Dec. 16, 2004. |
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| Claims priority of provisional application 60/474230, filed on May 30, 2003. | ||
| Prior Publication US 2007/0223082 A1, Sep. 27, 2007 | ||
| Int. Cl. G02F 2/02 (2006.01) | ||
| U.S. Cl. 359—329 [359/328; 372/22; 252/582; 252/587] | 87 Claims |
| 1. A method for producing a third harmonic signal from a laser light of wavelength λ, comprising:
irradiating said laser light on a material including a molecule having a formula D-Π-A, where D is an electron donor group,
A is an electron acceptor group, and Π is a conjugated structure having π bonds that connect the D donor group to the A acceptor
group, said molecule exhibiting an absorption band at a wavelength λ0 and exhibiting a weakly absorbing region as compared to the absorption band at λ0 at a wavelength λ1, such that λ1<λ0;
adjusting the wavelength λ of said laser light such that λ/2 has a value of about λ0 and λ/3 has a value of about λ1, thereby generating said third harmonic signal.
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