Nonlinear optical material and its method of manufacture
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorKazufumi Ogawa
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Abstract
A new nonlinear organic optical material having a high Second Harmonic Generation capability and a method of manufacturing the same is disclosed. Energy-beam sensitive monomer molecules having large molecular dipole-moments are sandwiched between two facing orientation films formed on respective substrates, and the energy-beam sensitive parts in said molecules are polymerized by irradiation with an energy-beam such as an X-ray beam after the dipole-moments of the energy-beam sensitive monomer molecules are aligned by applying a magnetic or an electric field. As a result of this, no cancellation of dipole-moments takes place, and polymers having extremely high dipole-moments and high Second Harmonic Generation efficiency can be derived and manufactured.
Claims10
A nonlinear optical material having a high Secondary Harmonic Generation effect resulting from:
- forming an organic orientation film on a surface of each of two substrates;
- positioning the surface of each of said substrates having said organic orientation film in a face to face relationship and establishing a gap therebetween;
- introducing into said gap energy-beam sensitive liquid-crystal monomer molecules having a dipole moment of a magnitude so that said monomer molecules become oriented in an aligned direction when exposed to a magnetic field;
- aligning said energy beam sensitive monomer molecules in a specified direction by exposure to a magnetic field;
- and
- exposing said substrates containing said monomer to radiation in an amount between 10 and 100M rad. to yield a cross linked polymer.
A nonlinear optical material having a high Secondary Harmonic Generation effect resulting from:
- forming an organic orientation film overlying an electrode on a surface of each of two substrates;
- positioning the surface of each of said substrates having said organic orientation film in a face to face relationship and establishing a gap therebetween;
- introducing into said gap energy-beam sensitive liquid-crystal monomer molecules having a dipole moment of a magnitude so that said monomer molecules become oriented in an aligned direction when exposed to an electric field;
- aligning said energy beam sensitive monomer molecules in a specified direction by exposure to an electric field;
- and
- exposing said substrates containing said monomer to radiation in an amount between 10 and 100M rad. to yield a cross linked polymer.
Dependencies are inferred from the claim text.