Frequency-dependent second harmonic generation in acentric chromophoric self-assembled NLO materials

Shlomo Yitzchaik, Paul M. Lundquist, Weiping Lin, David R. Kanis, Mark A Ratner, Tobin J Marks, George K. Wong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

An attractive and challenging approach to the construction of robust, thin film materials with large second-order optical nonlinearities is the covalent self-assembly of aligned arrays of high-β molecular chromophores into multilayer superlattices. In this paper, we describe the dispersion of second harmonic generation (SHG) in a self-assembled (SA) monolayer containing a stilbazolium chromophore. The frequency-dependent measurements were performed on 25 angstrom thick monolayers on glass using a tunable (0.4-2 μm) light source based on optical parametric amplification (OPA). The SHG spectrum contains a clear two-photon resonance at ℏω = 1.3eV. The maximum in the second-order susceptibility coincides with a low energy chromophore-centered charge-transfer excitation at 480 nm. The experimental SHG dispersion values compare favorably with theoretical results computed using a sum-over-states (SOS) formalism. However, the measured values exhibit a somewhat broader band response than the theoretical curve, and the origin of this behavior is discussed.

Original languageEnglish
Title of host publicationMaterials Research Society Symposium - Proceedings
PublisherMaterials Research Society
Pages119-125
Number of pages7
Volume351
Publication statusPublished - 1994
EventProceedings of the 1994 MRS Symposium - San Francisco, CA, USA
Duration: Apr 4 1994Apr 8 1994

Other

OtherProceedings of the 1994 MRS Symposium
CitySan Francisco, CA, USA
Period4/4/944/8/94

Fingerprint

Chromophores
Harmonic generation
Superlattices
Self assembled monolayers
Self assembly
Amplification
Light sources
Charge transfer
Monolayers
Multilayers
Photons
Glass
Thin films

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

Yitzchaik, S., Lundquist, P. M., Lin, W., Kanis, D. R., Ratner, M. A., Marks, T. J., & Wong, G. K. (1994). Frequency-dependent second harmonic generation in acentric chromophoric self-assembled NLO materials. In Materials Research Society Symposium - Proceedings (Vol. 351, pp. 119-125). Materials Research Society.

Frequency-dependent second harmonic generation in acentric chromophoric self-assembled NLO materials. / Yitzchaik, Shlomo; Lundquist, Paul M.; Lin, Weiping; Kanis, David R.; Ratner, Mark A; Marks, Tobin J; Wong, George K.

Materials Research Society Symposium - Proceedings. Vol. 351 Materials Research Society, 1994. p. 119-125.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Yitzchaik, S, Lundquist, PM, Lin, W, Kanis, DR, Ratner, MA, Marks, TJ & Wong, GK 1994, Frequency-dependent second harmonic generation in acentric chromophoric self-assembled NLO materials. in Materials Research Society Symposium - Proceedings. vol. 351, Materials Research Society, pp. 119-125, Proceedings of the 1994 MRS Symposium, San Francisco, CA, USA, 4/4/94.
Yitzchaik S, Lundquist PM, Lin W, Kanis DR, Ratner MA, Marks TJ et al. Frequency-dependent second harmonic generation in acentric chromophoric self-assembled NLO materials. In Materials Research Society Symposium - Proceedings. Vol. 351. Materials Research Society. 1994. p. 119-125
Yitzchaik, Shlomo ; Lundquist, Paul M. ; Lin, Weiping ; Kanis, David R. ; Ratner, Mark A ; Marks, Tobin J ; Wong, George K. / Frequency-dependent second harmonic generation in acentric chromophoric self-assembled NLO materials. Materials Research Society Symposium - Proceedings. Vol. 351 Materials Research Society, 1994. pp. 119-125
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