Hostname: page-component-745bb68f8f-b95js Total loading time: 0 Render date: 2025-01-27T03:20:04.728Z Has data issue: false hasContentIssue false
  • English
  • Français

Semiorganics: A New Class of Nlo Materials

Published online by Cambridge University Press:  25 February 2011

P. R. Newman ,
L. F. Warren ,
P. Cunningham ,
T. Y. Chang ,
D. E. Cooper ,
G. L. Burdge ,
P. Polak-Dingels  and
C. K. Lowe-Ma
P. R. Newman
Affiliation:
Rockwell International Science Center, Thousand Oaks, CA 91360
L. F. Warren
Affiliation:
Rockwell International Science Center, Thousand Oaks, CA 91360
P. Cunningham
Affiliation:
Rockwell International Science Center, Thousand Oaks, CA 91360
T. Y. Chang
Affiliation:
Rockwell International Science Center, Thousand Oaks, CA 91360
D. E. Cooper
Affiliation:
Rockwell International Science Center, Thousand Oaks, CA 91360
G. L. Burdge
Affiliation:
Laboratory for Physical Sciences, College Park, MD 20740
P. Polak-Dingels
Affiliation:
Laboratory for Physical Sciences, College Park, MD 20740
C. K. Lowe-Ma
Affiliation:
Naval Weapons Center, China Lake, CA 93555
Get access

Extract

Recent results indicate that certain organic molecules whose electronic structures are characterized by extended pi-molecular orbitals can exhibit significant second and third order nonlinear optical (NLO) effects [1]. Unfortunately, this same arrangement which leads to the NLO effects, can also result in essentially one-dimensional bonding coordination. This in turn means that crystals grown from these materials do not readily form good three-dimensional optical-quality crystals, but rather tend to form needles. In addition, pure organic crystals are usually bonded by weak van der Waals forces, often resulting in poor mechanical properties. Indeed, organic impurities are frequently incorporated into these systems during crystallization resulting in poor crystallinity, spurious absorptions, and low damage thresholds. This is particularly true in the case of polymeric NLO materials, where impurities result from the polymerization steps and/or starting materials.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 173: Symposium Q – Advanced Organic Solid State Materials , 1989 , 557
Copyright
Copyright © Materials Research Society 1990

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

[1] Williams, D.J., ed., Nonlinear Optical Properties of OrRanic and Polymeric Materials, ACS Symp. Ser. 233, Am. Chem. Soc., Washington, D.C., 1983.CrossRefGoogle Scholar
[2] Eimerl, D., Velsko, S., Davis, L., Wang, F., Loiacono, G., and Kennedy, G., IEEE J. Quantum Elec. 25, 179 (1989).Google Scholar
[3] Bedeaux, D. and Bloembergen, N., Physica 69, 57 (1973).Google Scholar
[4] Andreeti, G.D., Cavalca, L., and Musatti, A., Acta Cryst. B24, 683 (1968).Google Scholar
[5] Chang, T.Y., Ewbank, M.D., Vazquez, R.A., Warren, L.F., and Newman, P.R., presented at the 1989 Opt. Soc. Am. Fall Meeting, Orlando, FL, Oct. 16, 1985.Google Scholar