Fabrication of optical waveguides using organic photonic functional materials

使用有机光子功能材料制造光波导

基本信息

批准号：
10044121
负责人：
KAINO Toshikuni
金额：
$ 5.25万
依托单位：
TOHOKU UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A).
财政年份：
1998
资助国家：
日本
起止时间：
1998 至 1999
项目状态：
已结题

项目摘要

Organic photonic materials have potential to be applied for ultra-fast optical switches, spatial light modulators, and wavelength conversion devices. To attain these ends, organic optical waveguides with novel photonic functions that is hard to realize by using inorganic materials were fabricated. Optical functional ionic crystal, DAST, was successfully fabricated into rib waveguide by applying a new photo-process. This waveguide have a potential to be connected with passive polymer waveguides through photo and etching processes. A novel organic waveguide became possible to be realized by using these processes. DAST crystal was promising for generating THz wave effectively and to enhance the efficiency. Ridge waveguide of the crystal should have a cladding layer. So a special method for fabricating the cladding layer was investigated with the support of Heinrich Hertz Institute, Berlin. This new method allowed fabricating the cladding layer to the ridge waveguide. Using this technique, … More single-mode optical waveguides are possible to fabricate.We found that the DAST crystal has special crystal growth habits where is (100) direction grows faster than that of (-199) direction and that of (001) is faster than (00-1). By using these habits, we had fabricated a ridge waveguides toward the b-direction of the crystal on the polymer substrate where grooves with 50 x 50μm in size were patterned. This waveguide with ridge structure to b-direction is essential to utilize the highest d-coefficient, dィイD211ィエD2 or EO-coefficient, rィイD211ィエD2 of the crystal.Polystyrene was selected as a host polymer of the functional dyes and DAST was incorporated into the polymer homogeneously. This polymer system has a potential to be fabricated into a channel waveguide via thin film fabrication and dry etching process. New stylbazorium dyes were synthesized and several of these were revealed to have higher optical nonlinearity than that of the DAST.In conclusion, using the results obtained here, novel organic photonic waveguide could be realized that is necessary for future photonic information processing systems. Less

有机光子材料有可能应用于超快速的光学开关，空间光调节器和波长转换设备。为了达到这些目的，制造了具有新型光子函数的有机光学波导，通过使用无机材料很难实现。光学功能离子晶体DAST通过应用新的照片加工成功地制造成肋波导。该波导有可能通过照片和蚀刻过程与被动聚合物波导连接。通过使用这些过程，可以实现一种新型的有机波导。承诺有效地产生THZ波并提高效率。晶体的山脊波导应具有覆层层。因此，在柏林海因里希·赫兹学院的支持下，研究了一种制造覆层层的特殊方法。这种新方法允许将覆层层制造到山脊波导。使用此技术，…可以制造更多的单模光学波导。我们发现，Dast晶体具有特殊的晶体生长习惯，在该方向的速度（100）方向比（-199）方向增长的速度快，而（001）的增长速度快于（001）。通过使用这些习惯，我们在聚合物基板上制造了一个脊指导晶体的b方向，在该晶体底物上，将其大小为50 x50μm的凹槽进行了图案。具有脊结构到B方向的波导对于使用最高的D-coefffiffer，D211E D2或EO-COEFFIFFIFE，晶体中的D211E D2。聚合物被选为功能性染料的宿主聚合物，并将Dast掺入了聚合物中。该聚合物系统有可能通过薄膜制造和干燥蚀刻过程将其制造成通道波导。合成了新的降级型染料，其中几种揭示了与DAST的光学非线性更高。结论，使用此处获得的结果，可以实现新型的有机光子波导，这对于将来的光子信息处理系统是必不可少的。较少的