Chiral metal complexes with large octupolar optical nonlinearities

Dhenaut, C.; Ledoux, I.; Samuel, Ifor D. W.; Zyss, Joseph; Bourgault, Manuel; Bozec, Hubert Le

doi:10.1038/374339a0

Cited by 321 publications

(161 citation statements)

References 23 publications

Supporting

Mentioning

156

Contrasting

Unclassified

Order By: Relevance

“…The first HRS measurement of 28a at 1.34 µm in chloroform gave an exceptionally high β value of the synthesis of a series of 4,4Ј-dialkenyl-2,2Ј-bipyridine ligands 27 bearing π-donor substituents (dialkylaminophenyl 2200 ϫ 10 Ϫ30 esu. [69] This value was recently found to be overestimated due to some two-photon excited lumiand alkoxyphenyl) by the same route employed for the preparation of bipyridines 19 (Figure 9). [54] The corre-nescence, and new measurements gave reduced, but still high, hyperpolarisabilities [28a: β HRS ϭ 1130 ϫ 10 Ϫ30 esu; sponding complex [Ru(27) 3 ](PF 6 ) 2 (28) showed characteristically intense charge-transitions (ε ഠ 120000Ϫ150000) 28b: β HRS ϭ 1000 ϫ 10 Ϫ30 esu [70] ].…”

Section: Octahedral Complexesmentioning

confidence: 95%

See 1 more Smart Citation

Dipolar and Non-Dipolar Pyridine and Bipyridine Metal Complexes for Nonlinear Optics

Bozec

Renouard

2000

Eur. J. Inorg. Chem.

187

View full text Add to dashboard Cite

Metal complexes of pyridine and bipyridine‐type ligands represent an important class of nonlinear optical (NLO) materials: (i) They can incorporate a variety of functionalised ligands with a wide range of metals which can give rise to tuneable NLO properties; (ii) they are generally associated with intense low‐lying charge‐transfer excitations such as metal to ligand charge‐transfer (MLCT) or intraligand charge‐transfer (ILCT); (iii) bipyridyl ligands are also good building blocks that allow the construction of octupolar complexes with a defined geometry and symmetry. This review describes the recent developments in the design of such dipolar and octupolar chromophores for second‐order nonlinear optics.

show abstract

Section: Octahedral Complexesmentioning

confidence: 95%

“…[68] [69] For complexes 28a,b [D ϭ NBu 2 , N(Me)(Oct)], a very displayed a better nonlinearity-transparency trade-off. The ordering of the β values was the same as that found from broad ILCT band was observed at ca.…”

Section: Octahedral Complexesmentioning

confidence: 99%

Dipolar and Non-Dipolar Pyridine and Bipyridine Metal Complexes for Nonlinear Optics

Bozec

Renouard

2000

Eur. J. Inorg. Chem.

187

View full text Add to dashboard Cite

show abstract

“…In an EFISHG experiment, sample 26 www.elsevier.com/locate/cplett anisotropy (necessary for bulk frequency doubling) is induced by poling the sample in an electric field, conditions unsuitable for analysis of charged or non-dipolar species. HRS is not limited by these restrictions and in fact has been used to investigate ionic and non-dipolar molecules [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Hyper-Rayleigh scattering studies of silver, copper, and platinum nanoparticle suspensions

Johnson

Hupp

et al. 2002

Chemical Physics Letters

142

109

View full text Add to dashboard Cite

The optical frequency doubling properties of silver, copper, and platinum nanoparticles in aqueous solution are studied via hyper-Rayleigh scattering (HRS) spectroscopy. Substantial HRS responses are observed for silver and copper particles. The response is attributed to enhancement due to resonance of the nonlinearly scattered light with the particles' surface plasmon absorption band. Platinum particles, which lack visible-region plasmon absorption, do not display detectable HRS signals. The largest signals from silver particles are observed under conditions of two-photon resonance, qualitatively consistent with the predictions of available theory; smaller yet still impressive signals are observed under pre-and post-resonant conditions. Ó

show abstract

“…[7][8][9]13 So, the focus is placed on anisotropic appearance of HRS in intensity and shape. Crystal violet, which is a trigonal conjugated cationic dye with large hyperpolarizability ␤, 22 was selected as the test molecule because HRS originates from hyperpolarizability modulations by nuclear vibrations of molecules.…”

mentioning

confidence: 99%

Hyper-Raman scattering enhanced by anisotropic dimer plasmons on artificial nanostructures

Ikeda

Takase²,

Sawai³

et al. 2007

The Journal of Chemical Physics

View full text Add to dashboard Cite

Silver nanodimers with a small gap of a few nanometers aligned on glass substrates were used to enhance hyper-Raman scattering of crystal violet dye molecules. When localized surface plasmon of the dimer array was resonantly excited along the interparticle axis, hyper-Raman intensity was significantly enhanced. Moreover, the spectral appearance was slightly different between the two excitation polarizations, suggesting a possibility of two resonance contributions at one-photon and two-photon energies. Since the plasmonic property of dimer arrays can be controlled by the dimer geometry, the dimer arrays are expected to be well-defined substrates for surface-enhanced hyper-Raman spectroscopy

show abstract

Chiral metal complexes with large octupolar optical nonlinearities

Cited by 321 publications

References 23 publications

Dipolar and Non-Dipolar Pyridine and Bipyridine Metal Complexes for Nonlinear Optics

Dipolar and Non-Dipolar Pyridine and Bipyridine Metal Complexes for Nonlinear Optics

Hyper-Rayleigh scattering studies of silver, copper, and platinum nanoparticle suspensions

Hyper-Raman scattering enhanced by anisotropic dimer plasmons on artificial nanostructures

Contact Info

Product

Resources

About