Claims
- 1. A nonlinear optical film medium consisting of a noncentrosymmetric configuration of polymer molecules characterized by a recurring structural unit corresponding to the formula: ##STR25## where R.sup.1 is a hydrocarbyl substituent containing between about 1-12 carbon atoms; n is an integer of at least 5; and Z' is an electron-donating or electron-withdrawing substituent.
- 2. A nonlinear optical medium in accordance with claim 1 wherein the medium exhibits second order nonlinear optical response.
- 3. A nonlinear optical medium in accordance with claim 1 wherein the medium exhibits third order nonlinear optical response.
- 4. A nonlinear optical medium in accordance with claim 1 wherein the noncentrosymmetric configuration of molecules is external field-induced.
- 5. A nonlinear optical film medium consisting of a noncentrosymmetric configuration of polymer molecules characterized by a recurring structural unit corresponding to the formula: ##STR26## where R.sup.1 is a hydrocarbyl substituent containing between about 1-12 carbon atoms; X' is a C.sub.1 -C.sub.30 alkyl, alkoxy or alkylthio substituent, Y' is a substituent selected from nitro, cyano and trifluoromethyl groups; and the polymer contains between about 5-2000 silicon atoms.
- 6. A nonlinear optical film medium consisting of a noncentrosymmetric configuration of polymer molecules characterized by a recurring structural unit corresponding to the formula: ##STR27## where R.sup.1 is a hydrocarbyl substituent containing between about 1-12 carbon atoms; R.sup.2 and R.sup.3 are selected from hydrogen and C.sub.1 -C.sub.30 alkyl groups, and R.sup.2 and R.sup.3 taken with the connecting nitrogen atom form a heterocyclic substituent; Y' is a substituent selected from nitro, cyano and trifluoromethyl groups; and the polymer contains between about 5-2000 silicon atoms.
- 7. A nonlinear optical film medium consisting of a centrosymmetric configuration of polymer molecules characterized by a recurring structural unit corresponding to the formula: ##STR28## where R.sup.1 is a hydrocarbyl substituent containing between about 1-12 carbon atoms; n is an integer of at least 5; and Z' is an electron-donating or electron-withdrawing substituent.
- 8. A nonlinear optical medium in accordance with claim 7 wherein the medium exhibits third order nonlinear optical response.
- 9. A nonlinear optical medium in accordance with claim 7 wherein the centrosymmetric confirguration of polymer molecules is external field-induced.
- 10. A nonlinear optical film medium consisting of a centrosymmetric configuration of polymer molecules characterized by a recurring structural unit corresponding to the formula: ##STR29## where R.sup.1 is a hydrocarbyl substituent containing between about 1-12 carbon atoms; X' is a C.sub.1 -C.sub.30 alkyl, alkoxy or alkylthio substituent; Y' is a substituent selected from nitro, cyano and trifluoromethyl groups; and the polymer contains between about 5-2000 silicon atoms.
- 11. A nonlinear optical film medium consisting of a centrosymmetric configuration of polymer molecules characterized by a recurring structural unit corresponding to the formula: ##STR30## where R.sup.1 is a hydrocarbyl substituent containing between about 1-12 carbon atoms; R.sup.2 and R.sup.3 are selected from hydrogen and C.sub.1 -C.sub.30 alkyl groups, and R.sup.2 and R.sup.3 taken with the connecting nitrogen atom form a heterocyclic substituent; Y' is a substituent selected from nitro, cyano and trifluoromethyl groups; and the polymer contains between about 5-2000 silicon atoms.
Parent Case Info
This is a division of application Ser. No. 923,501 filed 10/27/86, now U.S. Pat. No. 4,801,659.
US Referenced Citations (3)
Divisions (1)
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Number |
Date |
Country |
Parent |
923501 |
Oct 1986 |
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