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公开(公告)号：DE69018390T2
公开(公告)日：1995-10-12
申请号：DE69018390
申请日：1990-12-07
Applicant: IBM
Inventor： FUKUZAWA TADASHI , KANO SATORU S , TAKAHASHI YUTAKA
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Patent Agency Ranking
公开(公告)号：DE69025564D1
公开(公告)日：1996-04-04
申请号：DE69025564
申请日：1990-12-07
Applicant: IBM
Inventor： FUKUZAWA TADASHI , KANO SATORU S , KUMATA KIYOSHI , LEE VICTOR Y , SCHELLENBERG FRANKLIN MARK , TAKAHASHI YUTAKA
Abstract: The invention relates to a nonlinear optical device comprising a film structure (2) coated on a substrate (1) without interposition of adhesive. According to the invention the device is characterised in that the film structure comprises a modulated intercalation structure consisting of a layer of semi-conductor material and a layer of organic material, the layers having different energy gaps and the modulated structure being a super lattice structure. The invention also relates to a method of manufacturing a nonlinear optical device comprising dissolving an organic material in a solvent, and spin coating the solution onto a substrate and thereby forming an organic material film with one of its crystal axes oriented in the direction normal to the substrate, the film having a modulated structure of the two types of layers alternately intercalated and differing in energy gap in the direction.
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公开(公告)号：DE69025564T2
公开(公告)日：1996-09-19
申请号：DE69025564
申请日：1990-12-07
Applicant: IBM
Inventor： FUKUZAWA TADASHI , KANO SATORU S , KUMATA KIYOSHI , LEE VICTOR Y , SCHELLENBERG FRANKLIN MARK , TAKAHASHI YUTAKA
Abstract: The invention relates to a nonlinear optical device comprising a film structure (2) coated on a substrate (1) without interposition of adhesive. According to the invention the device is characterised in that the film structure comprises a modulated intercalation structure consisting of a layer of semi-conductor material and a layer of organic material, the layers having different energy gaps and the modulated structure being a super lattice structure. The invention also relates to a method of manufacturing a nonlinear optical device comprising dissolving an organic material in a solvent, and spin coating the solution onto a substrate and thereby forming an organic material film with one of its crystal axes oriented in the direction normal to the substrate, the film having a modulated structure of the two types of layers alternately intercalated and differing in energy gap in the direction.
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公开(公告)号：DE69018390D1
公开(公告)日：1995-05-11
申请号：DE69018390
申请日：1990-12-07
Applicant: IBM
Inventor： FUKUZAWA TADASHI , KANO SATORU S , TAKAHASHI YUTAKA
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公开(公告)号：JPH03182724A
公开(公告)日：1991-08-08
申请号：JP31791489
申请日：1989-12-08
Applicant: IBM
Inventor： FUKUZAWA KAORU , KANO SATORU , TAKAHASHI YUTAKA
Abstract: PURPOSE: To provide a non-mechanical light beam deflector having a deflection speed higher than GHz by providing a voltage applying means and a laser light incidence means for a plane waveguide type diffraction grating formed in a super-grating structure body or a waveguide structure including this structure body. CONSTITUTION: A deflection part having a slab waveguide structure consists of a holographic collimator 3 and a diffraction grating 4, and a laser output 5 is spread in the slab waveguide at an angle determined by the refractive index of the waveguide part of a laser part and that adjacent to the laser part. The angle of deflection in the diffraction grating 4 is a function of the refractive index but can be controlled by a charged current, and the response time of the change of the refractive index is the order of sub-nanoseconds. Thus, the non-mechanical light beam deflector having a deflection speed higher than GHz is formed.
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公开(公告)号：JPH03182725A
公开(公告)日：1991-08-08
申请号：JP31791689
申请日：1989-12-08
Applicant: IBM
Inventor： FUKUZAWA KAORU , KANO SATORU , KUMADA KIYOSHI , BIKUTAA WAI RII , FURANKURIN EMU SHIERENBAAGU , TAKAHASHI YUTAKA
Abstract: PURPOSE: To obtain a nonlinear optical element at low cost by forming a thin- film structural body so as to have fine structures by intercalation constitution in a direction perpendicular to a substrate and forming the fine structures of super-lattice structures. CONSTITUTION: When a (C10 H21 NH3 )2 PbI4 thin film 2 is formed on the substrate 1, the so-called multiple quantum well structures in which the two-dimensional layers of Pb exist an intervals of 21.3Å along the c-axis direction in the crystal and the respective layer of PbI4 , i.e., the quantum wells exist at every 21.25Å are formed on the substrate surface. The quantum confinement effect depends only on the structure in the c-axis direction even in the case of the (C10 H21 NH3 )2 PbI4 single crystal itself. The sufficient optical effect based on the quantum confinement effect is obtd. even in the case having the quantum wells structures only in the c-axis direction. As a result, the formation of the nonlinear optical element without using intricate and costly equipment is made possible.
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