Organic Thin Films for Photonics Applications最新文献_第6页

Optical Measurement of the Glass Transition Temperature of Polymer Waveguides for Integrated Optics 集成光学中聚合物波导玻璃化转变温度的光学测量

Organic Thin Films for Photonics Applications Pub Date : 1900-01-01 DOI: 10.1364/otfa.1997.the.20

H. Bock, S. Christian, W. Knoll, J. Vydra

引用次数: 0

Application of Surface Relief Gratings Created on Azobenzene Functionalized Polymer Films as Phase Masks 偶氮苯功能化聚合物薄膜表面浮雕光栅作为相位掩膜的应用

Organic Thin Films for Photonics Applications Pub Date : 1900-01-01 DOI: 10.1364/otfa.1997.fb.3

Lian Li, X. Jiang, Dong-Yu Kim, J. Kumar, S. Tripathy

{"title":"Application of Surface Relief Gratings Created on Azobenzene Functionalized Polymer Films as Phase Masks","authors":"Lian Li, X. Jiang, Dong-Yu Kim, J. Kumar, S. Tripathy","doi":"10.1364/otfa.1997.fb.3","DOIUrl":"https://doi.org/10.1364/otfa.1997.fb.3","url":null,"abstract":"Holographic recording of surface relief gratings has recently been reported in side chain azo containing polymers by Kumar, Tripathy and coworkers [1-10] and Rochon, Natansohn and coworkers [11-13] It has been demonstrated that large surface modulation (>3000Å) could be inscribed in thin films of these polymers when an Argon ion laser radiation at 488 nm with a modest intensity (a few tens of mW/cm2) is used to record the gratings. This grating formation process strongly depends on the polarization states of the recording beams [4]. The gratings appear to be almost sinusoidal and recording of crossed gratings has been demonstrated[1]. These gratings are very stable when they are kept below the glass transition temperature (Tg) of the polymer. The gratings can be erased by either heating the grating sample above Tg or exposing it to a single laser beam at appropriate wavelength and with appropriate polarization [10]. This process allows a one step fabrication of complicated surface profile without the need of any pre or post processing of the polymer samples. Complex surface profiles, for example, well defined beat structures and blazed gratings have been recorded on these polymer films [8]. Since this surface relief grating formation process provides the one step processing and large surface modulation on the polymer films, such process is expected to have significant potential applications for various optical devices including diffractive optical elements.","PeriodicalId":378320,"journal":{"name":"Organic Thin Films for Photonics Applications","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124341257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Observation of Switching Phenomena in Non-ether PPQ Planar Waveguide with Two-wavelength Nonlinear Prism Coupling 两波长非线性棱镜耦合非醚PPQ平面波导中开关现象的观察

Organic Thin Films for Photonics Applications Pub Date : 1900-01-01 DOI: 10.1364/otfa.1997.wc.6

Jun Zhou, Z. Cao, Yingli Chen, Yixin Chen, Meng Sun, Diechi Sun, Fuming Li

{"title":"Observation of Switching Phenomena in Non-ether PPQ Planar Waveguide with Two-wavelength Nonlinear Prism Coupling","authors":"Jun Zhou, Z. Cao, Yingli Chen, Yixin Chen, Meng Sun, Diechi Sun, Fuming Li","doi":"10.1364/otfa.1997.wc.6","DOIUrl":"https://doi.org/10.1364/otfa.1997.wc.6","url":null,"abstract":"In the past two decades, third-order nonlinear optical properties of organic and polymeric materials have attracted considerable attention to realize all-optical signal processing devices.1,2 Especially, the large off-resonance third-order optical nonlinearities of conjugated organic polymers with delocalized π--electron systems, such as polydiacetylenes3,4, are considered to be potential candidates. Although conjugated polymer is reported to have large χ(3) and fast response time, many of them are highly intractable materials that are difficult to process to form the low-loss waveguide structures required for their application5. Recently, many techniques for fabricating low-loss planar waveguides in thin films of solution processible conjugated polymer have been developed7,8 besides third-order nonlinear optical polymers that exhibit low absorption have been reported6 Furthermore, numerous different schemes which aim is all-optical switching and all-optical logic operations have been suggested for practical devices. They are included in nonlinear prism and grating couplers and nonlinear directional couplers9,10, such as two-channel nonlinear directional couplers, nonlinear Mach-Zehnder interferometers, nonlinear distributed-feedback grating reflectors and adiabatic polymer-glass-waveguide all-optical switch11,12. However, though the prism coupler has attracted partially significant attention both theoretically13 and experimentally14, as so far we know the nonlinear prism coupling to organic polymer waveguide has only been demonstrated in single beam experiments on intense-dependent nonlinear effects15.","PeriodicalId":378320,"journal":{"name":"Organic Thin Films for Photonics Applications","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125224428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High Speed Polymer Optical Fiber and Related Photonics Polymer 高速聚合物光纤及相关光子学聚合物

Organic Thin Films for Photonics Applications Pub Date : 1900-01-01 DOI: 10.1364/otfa.1997.thb.2

Y. Koike

引用次数: 0

Thiophene based Nonlinear Optical Chromophore functionalized Epoxy Polymers for Electro-Optic Applications 基于噻吩的非线性光学发色团功能化环氧聚合物的电光应用

Organic Thin Films for Photonics Applications Pub Date : 1900-01-01 DOI: 10.1364/otfa.1997.thc.4

K. G. Chittibabu, L. Li, X. Wang, J. Kumar, S. Tripathy

{"title":"Thiophene based Nonlinear Optical Chromophore functionalized Epoxy Polymers for Electro-Optic Applications","authors":"K. G. Chittibabu, L. Li, X. Wang, J. Kumar, S. Tripathy","doi":"10.1364/otfa.1997.thc.4","DOIUrl":"https://doi.org/10.1364/otfa.1997.thc.4","url":null,"abstract":"Polymeric materials present certain advantages over inorganic crystals for second-order nonlinear optical (NLO) applications because of their low dielectric constant, large optical nonlinearity, low cost, and ease of processability. Stable NLO polymeric materials are potential candidates for electro-optic (EO) devices such as high bandwidth electro-optic modulators [1], optical interconnects [2], and fiber optic gyros [3]. Second-order NLO properties in polymers are present when the chromophores are aligned in a non-centrosymmetric manner. Chromophores with enhanced NLO susceptibilities can be obtained by increasing electron-donating and/or accepting effects [4], by extending the conjugation length between the donor and acceptor groups [5] and by replacing the phenyl moieties in the chromophores with thiophene moieties [6]. Efforts were made by our group [7] and various other groups [6, 8] to synthesize and optimize the properties of the chromophore functionalized polymers with high optical nonlinearity. Jen and coworkers synthesized a variety of thiophene based chromophores with high optical nonlinearity, 'μβ' [6, 8]. Many of these chromophores, when doped in a polymer matrix exhibited an electro-optic value greater than 20 pm/V. Marder and coworkers studied the effect of strong acceptors in NLO chromophores and have found that an 'r33' value of 55 pm/V at 1.313 μm is realizable with some of these chromophore doped polycarbonate composites. However, most of these systems are of guest-host type, which limit the chromophore solubility as well as temporal stability of the poled order in the NLO chromophore-polymer composites.","PeriodicalId":378320,"journal":{"name":"Organic Thin Films for Photonics Applications","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124003632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Characterization of Electro-Optic Polymer Films using Decal Deposited Reflection Fabry-Perot Modulators 利用贴花沉积反射法布里-珀罗调制器表征电光聚合物薄膜

Organic Thin Films for Photonics Applications Pub Date : 1900-01-01 DOI: 10.1364/otfa.1997.fc.2

L.-M. Wu, P. Prêtre, R. Hill, A. Knoesen

引用次数: 0

Molecular-Level Engineering of Polymer-Based Light-Emitting Devices 聚合物发光器件的分子水平工程学

Organic Thin Films for Photonics Applications Pub Date : 1900-01-01 DOI: 10.1364/otfa.1997.wd.5

M. Rubner

引用次数: 0

Thermooptic switches using fluorinated polyimide waveguides 使用氟化聚酰亚胺波导的热光开关

Organic Thin Films for Photonics Applications Pub Date : 1900-01-01 DOI: 10.1364/otfa.1997.fa.4

Junva Kobavashi, T. Maruno, Y. Hida, T. Matsuura, S. Sasaki

引用次数: 0

Optical Limiting and the Potential Role of Organic Materials 光学限制和有机材料的潜在作用

Organic Thin Films for Photonics Applications Pub Date : 1900-01-01 DOI: 10.1364/otfa.1997.tha.1

E. V. Van Stryland, A. Dogariu, J. Lim, D. Hagan, O. Przhonska

{"title":"Optical Limiting and the Potential Role of Organic Materials","authors":"E. V. Van Stryland, A. Dogariu, J. Lim, D. Hagan, O. Przhonska","doi":"10.1364/otfa.1997.tha.1","DOIUrl":"https://doi.org/10.1364/otfa.1997.tha.1","url":null,"abstract":"We will present a brief review of past work on passive sensor protection devices including the materials studied (e.g. semiconductors, organics and ink) and some of the requirements of optical limiting devices. The nonlinear mechanisms potentially useful for optical limiting include nonlinear absorption, nonlinear refraction and nonlinear scattering. We present methods for characterizing nonlinear materials using Z-scan and related techniques and describe ways to differentiate the nonlinear mechanisms. We will specifically discuss two-photon absorption and excited-state absorption (referred to as reverse-saturable absorption), as well as bound electronic n2 and excited-state refraction. We also show how to examine organic thin films using a modified Z-scan with enhanced sensitivity called EZ-scan. The organic materials studied include phthalocyanine and polymethine dyes. The potential of organics for real optical systems remains to be seen. For example, the most promising organic limiting materials are effective over somewhat smaller spectral ranges than desired. Mixing of different materials in solution or solid matrices may extend the spectral range, and potentially extend the dynamic range as well.","PeriodicalId":378320,"journal":{"name":"Organic Thin Films for Photonics Applications","volume":"156 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133786669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Linear Electro-Optic measurements of Dye-Doped Polymers 染料掺杂聚合物的线性电光测量

Organic Thin Films for Photonics Applications Pub Date : 1900-01-01 DOI: 10.1364/otfa.1997.the.3

F. Ghebremichael, R. Knize

引用次数: 0