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International Journal of Nonlinear Optical Physics最新文献

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RECENT PROGRESS IN POLYDIACETYLENE MATERIAL RESEARCH FOR NONLINEAR OPTICS 非线性光学用聚二乙炔材料研究进展
International Journal of Nonlinear Optical Physics Pub Date : 1994-10-01 DOI: 10.1142/S0218199194000298
S. Okada, H. Nakanishi
{"title":"RECENT PROGRESS IN POLYDIACETYLENE MATERIAL RESEARCH FOR NONLINEAR OPTICS","authors":"S. Okada, H. Nakanishi","doi":"10.1142/S0218199194000298","DOIUrl":"https://doi.org/10.1142/S0218199194000298","url":null,"abstract":"In order to enhance the third-order nonlinear optical susceptibilities (χ(3)s) of polydiacetylenes, polydiacetylenes with π-conjugation between polymer backbone and acetylenic substituents were synthesized. In the case of hexatriyne monomer, solid-state polymerization proceeded via 1, 4-addition to give polydiacetylene with directly bound ethynyl substituents. Also 1, 4-addition polymerization took place in the case of octatetrayne and dodecahexayne monomers and gave polydiacetylenes with butadiynyl and octatetraynyl substituents, respectively. These butadiynyl and octatetraynyl moieties of the latter two polymers could thermally be polymerized furthermore. Especially, in the case of dodecahexayne, formation of an interesting ladder polymer with π-conjugation between two polydiacetylene backbones were confirmed by the solid-state NMR. The effective χ(3)(−3ω; ω, ω, ω) value in three-photon resonant region of the π-conjugation system of polydiacetylenes with butadiynyl substituents was elucidated to be about 10−9 esu. The ratio of χ(3) to absorption at the THG wavelength in near-resonant region was found to be larger than that in resonant region. Aiming at obtaining sharp excitonic absorption of polydiacetylenes, polydiacetylene microcrystals with controlled molecular weight distribution, i.e., uniform electronic structure in the polymer backbones, were also examined.","PeriodicalId":361062,"journal":{"name":"International Journal of Nonlinear Optical Physics","volume":"4 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114029247","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: 2
Polymers for Photonics 光子学用聚合物
International Journal of Nonlinear Optical Physics Pub Date : 1994-10-01 DOI: 10.1007/978-1-4615-3856-1_4
P. Prasad
{"title":"Polymers for Photonics","authors":"P. Prasad","doi":"10.1007/978-1-4615-3856-1_4","DOIUrl":"https://doi.org/10.1007/978-1-4615-3856-1_4","url":null,"abstract":"","PeriodicalId":361062,"journal":{"name":"International Journal of Nonlinear Optical Physics","volume":"272 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121356914","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: 14
NONLINEAR ORGANIC MOLECULES AND MATERIALS FOR OPTOELECTRONIC DEVICES 光电器件用非线性有机分子与材料
International Journal of Nonlinear Optical Physics Pub Date : 1994-07-01 DOI: 10.1142/S0218199194000183
I. Ledoux, J. Zyss
{"title":"NONLINEAR ORGANIC MOLECULES AND MATERIALS FOR OPTOELECTRONIC DEVICES","authors":"I. Ledoux, J. Zyss","doi":"10.1142/S0218199194000183","DOIUrl":"https://doi.org/10.1142/S0218199194000183","url":null,"abstract":"The development of important applications related to optical telecommunications and optical signal processing rely increasingly on nonlinear optical phenomena underlying these optical functions such as frequency conversion and modulation, amplification and emission, multiplexing and directional switching, optical logical gates, and others. This will depend on the design, elaboration and availability of new materials displaying enhanced nonlinearities to be subsequently integrated into waveguiding devices. Organic materials are noteworthy candidates in this context, provided their microscopic and macroscopic properties are properly optimized with respect to the type of application required. Among the key-factors in the development of these materials are the quasi-unlimited variety of molecular structures accessible by organic synthesis, the possibility to connect specific nonlinear properties to other kinds of functionalities which are of crucial importance for the development of commercial devices (e.g., compatibility with other materials used in integrated optical circuits such as semi-conductors), and their exceptionally large second-order, non-resonant nonlinear response. Such performances are strongly dependent on a better understanding of the ‘molecular engineering’, rules, correlating molecular structures to their nonlinear optical properties towards optimization of the microscopic second order polarizabilities β and third-order polarizabilities γ. We will present in the following some examples of the most recent developments of highly efficient nonlinear molecules, ranging from purely one-dimensional structures such as polyenes to fully three-dimensional systems, taking full advantage of the tensorial character of the microscopic or macroscopic susceptibility tensors.","PeriodicalId":361062,"journal":{"name":"International Journal of Nonlinear Optical Physics","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133565859","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: 30
APPLICATIONS OF PHOTOREFRACTIVE VOLUME HOLOGRAPHY IN OPTICAL COMPUTING 光折变体全息在光学计算中的应用
International Journal of Nonlinear Optical Physics Pub Date : 1994-07-01 DOI: 10.1142/S0218199194000195
C. Gu, P. Yeh
{"title":"APPLICATIONS OF PHOTOREFRACTIVE VOLUME HOLOGRAPHY IN OPTICAL COMPUTING","authors":"C. Gu, P. Yeh","doi":"10.1142/S0218199194000195","DOIUrl":"https://doi.org/10.1142/S0218199194000195","url":null,"abstract":"After a brief review of the photorefractive effect, we describe three examples of the applications in optical computing using photorefractive volume holography. These are 3-dimensional optical storage, parallel optical matrix processor, and multiwavelength optical half-adder. For the 3-dimensional optical storage, we consider some fundamental issues in photorefractive memory, including the storage capacity and the dynamic range. We also discuss the photorefractive noise gratings formed during a multiple exposure schedule. These fundamental issues in photorefractive storage are important in understanding the potentials and limitations of optical memory systems. For parallel optical matrix processing, we propose and demonstrate a novel method of matrix-matrix application using grating degeneracy in photorefractive media in conjunction with incoherent laser source arrays. For multiwavelength optical half-adder, we describe photorefractive logic gates and their application in the summation of binary numbers.","PeriodicalId":361062,"journal":{"name":"International Journal of Nonlinear Optical Physics","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114520935","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: 9
INTERACTION GEOMETRIES OF SELF PUMPED PHASE-CONJUGATING SBS CELLS 自抽运相位共轭SBS细胞的相互作用几何形状
International Journal of Nonlinear Optical Physics Pub Date : 1994-04-01 DOI: 10.1142/S0218199194000122
A. Kummrow
{"title":"INTERACTION GEOMETRIES OF SELF PUMPED PHASE-CONJUGATING SBS CELLS","authors":"A. Kummrow","doi":"10.1142/S0218199194000122","DOIUrl":"https://doi.org/10.1142/S0218199194000122","url":null,"abstract":"Focused beam SBS cells and waveguide geometry are compared expanding the light wave into transverse modes, allowing for an analytical discussion. Waveguides give poor fidelity when used without aberrators to homogenize the intensity distribution over the light pipe cross section. Focused beam SBS cells can phase-conjugate single transverse mode pump waves without the help of aberrators. The calculated fidelity of about 0.6 for pumping with the fundamental mode is nearly constant from threshold up to more than 70% reflection. The beam constriction factor is β=0.7 resulting in a 1.4-times diffraction limited reflected beam.","PeriodicalId":361062,"journal":{"name":"International Journal of Nonlinear Optical Physics","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116179597","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: 2
Nonlinear optical studies of polymer interfaces 聚合物界面的非线性光学研究
International Journal of Nonlinear Optical Physics Pub Date : 1994-03-08 DOI: 10.1142/S0218199194000250
Y. Shen
{"title":"Nonlinear optical studies of polymer interfaces","authors":"Y. Shen","doi":"10.1142/S0218199194000250","DOIUrl":"https://doi.org/10.1142/S0218199194000250","url":null,"abstract":"Second-order nonlinear optical processes can be used as effective surface probes. They can provide some unique opportunities for studies of polymer interfaces. Here we describe two examples to illustrate the potential of the techniques. One is on the formation of metal/polymer interfaces. The other is on the alignment of liquid crystal films by mechanically rubbed polymer surfaces.","PeriodicalId":361062,"journal":{"name":"International Journal of Nonlinear Optical Physics","volume":"26 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116544726","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: 4
INTENSITY DEPENDENT NONLINEAR MATERIAL REQUIREMENTS FOR PASSIVE OPTICAL LIMITING 无源光限幅的强度相关非线性材料要求
International Journal of Nonlinear Optical Physics Pub Date : 1993-10-01 DOI: 10.1142/S0218199193000309
G. Wood, E. Sharp
{"title":"INTENSITY DEPENDENT NONLINEAR MATERIAL REQUIREMENTS FOR PASSIVE OPTICAL LIMITING","authors":"G. Wood, E. Sharp","doi":"10.1142/S0218199193000309","DOIUrl":"https://doi.org/10.1142/S0218199193000309","url":null,"abstract":"Passive optical limiting devices based on nonlinear optical (NLO) materials exhibit a throughput radiation level that is related to the magnitude of the nonlinear material parameters. We model both optically ‘thick’ and optically ‘thin’ limiters based on intensity dependent, χ(3) nonlinearities and predict the magnitude of the nonlinearities required to provide protection for the human eye from laser induced damage for a specific optical system. These calculated nonlinearities are given in terms of a required index change, n2, or absorption change, β.","PeriodicalId":361062,"journal":{"name":"International Journal of Nonlinear Optical Physics","volume":"190 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121732357","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: 2
HIGH DYNAMIC RANGE PASSIVE OPTICAL LIMITERS 高动态范围无源光限幅器
International Journal of Nonlinear Optical Physics Pub Date : 1993-10-01 DOI: 10.1142/S0218199193000292
D. Hagan, T. Xia, A. Said, T. Wei, E. W. Stryland
{"title":"HIGH DYNAMIC RANGE PASSIVE OPTICAL LIMITERS","authors":"D. Hagan, T. Xia, A. Said, T. Wei, E. W. Stryland","doi":"10.1142/S0218199193000292","DOIUrl":"https://doi.org/10.1142/S0218199193000292","url":null,"abstract":"We present results of optical limiting experiments designed to study optical geometries for increasing the dynamic range over which limiters function without incurring optical damage. Specifically, we investigate a tandem geometry with two passive nonlinear elements, one placed in the focal plane of a lens and the second placed “upstream” of the focal position to protect the material at focus from damage. To provide a proof-of-principle demonstration of this geometry, simple limiters consisting of combinations of reverse saturable absorber dyes and a carbon black suspension in thin cells were tested. Our results show that a substantial increase in device performance can be achieved by use of a tandem limiter geometry. Simple modelling predicts that the dynamic range of a separate-element tandem limiter is given by the product of the dynamic ranges of the individual component limiting elements, in agreement with our experimental results.","PeriodicalId":361062,"journal":{"name":"International Journal of Nonlinear Optical Physics","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129875648","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: 54
“ANTI-REFLECTION” COATING FOR A NONLINEAR TRANSMISSION TO TOTAL REFLECTION SWITCH 用于非线性透射全反射开关的“抗反射”涂层
International Journal of Nonlinear Optical Physics Pub Date : 1993-07-01 DOI: 10.1142/S0218199193000267
P. Zhou, I. Khoo
{"title":"“ANTI-REFLECTION” COATING FOR A NONLINEAR TRANSMISSION TO TOTAL REFLECTION SWITCH","authors":"P. Zhou, I. Khoo","doi":"10.1142/S0218199193000267","DOIUrl":"https://doi.org/10.1142/S0218199193000267","url":null,"abstract":"An anti-reflection dielectric coating is designed for a nonlinear interface between a linear and a nonlinear medium. Expressions for the required thickness and refractive indices are derived. It is shown that the appropriately coated system will allow low power light to be initially highly transmitted even for incident angles close to the critical angle for total reflection; the system will also perform the nonlinear transmission to total-reflection switching for high power light.","PeriodicalId":361062,"journal":{"name":"International Journal of Nonlinear Optical Physics","volume":"164 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122827373","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: 1
NONLINEAR EFFECTS IN ERBIUM-DOPED FIBRES 掺铒光纤中的非线性效应
International Journal of Nonlinear Optical Physics Pub Date : 1993-07-01 DOI: 10.1142/S0218199193000243
P. Chu, Y. Xue
{"title":"NONLINEAR EFFECTS IN ERBIUM-DOPED FIBRES","authors":"P. Chu, Y. Xue","doi":"10.1142/S0218199193000243","DOIUrl":"https://doi.org/10.1142/S0218199193000243","url":null,"abstract":"Theoretical and experimental investigations of the nonlinear refractive index in an Erbium-doped fibre is presented. The transient response of this fibre is also examined. The switching speed can be improved by using a signal power at a wavelength close to the resonant wavelength between the excited state and the ground state.","PeriodicalId":361062,"journal":{"name":"International Journal of Nonlinear Optical Physics","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131269427","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: 6
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