Polar self-assembled thin films for non-linear optical materials

Details Polar self-assembled thin films for non-linear optical materials Polar self-assembled thin films for non-linear optical materials

1997-04-18

2000-03-07

Nakarani, D. S.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

252582, 359328, 359329, 359330, 359332, 385122, 385129, 385130, 385131, 428405, 428429, 428447, 428451, G02F 135, G02F 202

Patent

active

060337737

ABSTRACT:
The design and synthesis of a family of calix[4]arene-based nonlinear optical (NLO) chromophores are discussed. The calixarene chromophores are macrocyclic compounds consisting of four simple D-.pi.-A units bridged by methylene groups. These molecules were synthesized such that four D-.pi.-A units of the calix[4]arene were aligned along the same direction with the calixarene in a cone conformation. These nonlinear optical super-chromophores were subsequently fabricated into covalently bound self-assembled monolayers on the surfaces of fused silica and silicon. Spectroscopic second harmonic generation (SHG) measurements were carried out to determine the absolute value of the dominant element of the second-order nonlinear susceptibility, d.sub.33, and the average molecular alignment, .PSI.. A value of d.sub.33 =60 pm/V at a fundamental wavelength of 890 nm, and .PSI..about.36.degree. was found with respect to the surface normal.

REFERENCES:
patent: 5156918 (1992-10-01), Marks et al.
patent: 5434208 (1995-07-01), Batelaan et al.
Erik Kelderman et al., "Highly Ordered Films of Neat Calix[4]arenes for Second Order Nonlinear Optics," Adv. Mater. vol. 5, No. 12, pp. 925-930 (1993).
DeQuan Li et al., "Chromophoric Self-Assembled Multilayers, Organic Superlattice Approaches to Thin-Film Nonlinear Optical Materials," J. Am. Chem. Soc. 112, pp., 7389-7390 (1990).
Willem Verboom et al., "Ipso Nitration of p-tert-Butylcalix[4]arenes," J. Org. Chem. 57, pp. 1313-1316 (1992).
Suk-Kyu Chang et al., "New Metal Cation-Selective Ionophores Derived From Calixarenes: Their Syntheses and Ion-Binding Properties," J. Chem. Soc. Perkin Trans. 1, pp. 211-214 (1986).

Affiliated with

Also associated with

Rating

Polar self-assembled thin films for non-linear optical materials does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polar self-assembled thin films for non-linear optical materials, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polar self-assembled thin films for non-linear optical materials will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-360922