发布求助
文献互助 智能选刊 最新文献

Optics & Photonics - Photonic Devices + Applications最新文献

筛选
英文 中文
In the search of anisotropic biocompatible liquid environments for bacterial motility studies 寻找各向异性生物相容性液体环境进行细菌运动研究
Optics & Photonics - Photonic Devices + Applications Pub Date : 2014-12-15 DOI: 10.1117/12.2063757
I. Duchesne, T. Galstian, S. Rainville
{"title":"In the search of anisotropic biocompatible liquid environments for bacterial motility studies","authors":"I. Duchesne, T. Galstian, S. Rainville","doi":"10.1117/12.2063757","DOIUrl":"https://doi.org/10.1117/12.2063757","url":null,"abstract":"Several experimental approaches are explored to introduce the E. coli bacteria in a liquid anisotropic host. Fonctionalization of the bacterial surface is experimented with 2 different molecules. The 5CB is first used as host and it is shown that, while the bacteria survive at short term in such an environment, they aggregate into colonies. Water solution of the cromolyn sodium salt is also explored with success and the time stability of corresponding sandwich-like structures is characterized.","PeriodicalId":358951,"journal":{"name":"Optics & Photonics - Photonic Devices + Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122541490","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
Sub 150 °C processed meso-superstructured perovskite solar cells with enhanced efficiency (presentation video) 150℃以下加工的中超结构钙钛矿太阳能电池效率提高(演示视频)
Optics & Photonics - Photonic Devices + Applications Pub Date : 2014-11-20 DOI: 10.1117/12.2060684
K. Wojciechowski, Michael Saliba, T. Leijtens, A. Abate, H. Snaith
{"title":"Sub 150 °C processed meso-superstructured perovskite solar cells with enhanced efficiency (presentation video)","authors":"K. Wojciechowski, Michael Saliba, T. Leijtens, A. Abate, H. Snaith","doi":"10.1117/12.2060684","DOIUrl":"https://doi.org/10.1117/12.2060684","url":null,"abstract":"The ability to process amorphous or polycrystalline solar cells at low temperature (<150 °C) opens many possibilities for substrate choice and monolithic multijunction solar cell fabrication. Organometal trihalide perovskite solar cells have evolved rapidly over the last two years, and the CH3NH3PbX3 (X= Cl, I or Br) material is processed at low temperature. Until now however, the most efficient solar cells have employed 500 ºC sintered TiO2 compact layers as charge selective contacts. With our optimized formulation we demonstrate full sun solar power conversion efficiencies exceeding 16 % in an all low temperature processed solar cell.","PeriodicalId":358951,"journal":{"name":"Optics & Photonics - Photonic Devices + Applications","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126148811","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
Comparative study on degradation and trap density-of-states of p type and n type organic semiconductors p型和n型有机半导体的降解和阱态密度的比较研究
Optics & Photonics - Photonic Devices + Applications Pub Date : 2014-10-31 DOI: 10.1117/12.2064832
M. R. Shijeesh, L. Vikas, M. Jayaraj, J. Puigdollers
{"title":"Comparative study on degradation and trap density-of-states of p type and n type organic semiconductors","authors":"M. R. Shijeesh, L. Vikas, M. Jayaraj, J. Puigdollers","doi":"10.1117/12.2064832","DOIUrl":"https://doi.org/10.1117/12.2064832","url":null,"abstract":"The OTFTs with both p type and n type channel layers were fabricated using the inverted-staggered (top contact) structure by thermal vapour deposition on Si/SiO2 substrate. Pentacene and N,N’-Dioctyl- 3,4,9,10- perylenedicarboximide (PTCDI-C8) were used as channel layer for the fabrications of p type and n type OTFTs respectively. A comparative study on the degradation and density of states (DOS) of p type and n type organic semiconductors have been carried out. In order to compare the stability and degradation of pentacene and PTCDI-C8 OTFTs, the devices were exposed to air for 2 h before performing electrical measurements in air. The DOS measurements revealed that a level with defect density of 1020 cm-3 was formed only in PTCDI C8 layer on exposure to air. The oxygen adsorption into the PTCDI-C8 active layer can be attributed to the formation of this level at 0.15 eV above the LUMO level. The electrical charge transport is strongly affected by the oxygen traps and hence n type organic materials are less stable than p type organic materials.","PeriodicalId":358951,"journal":{"name":"Optics & Photonics - Photonic Devices + Applications","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122709556","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
Molecular magneto-optics 分子磁光
Optics & Photonics - Photonic Devices + Applications Pub Date : 2014-10-28 DOI: 10.1117/12.2061841
P. Gangopadhyay, G. Koeckelberghs, A. Persoons
{"title":"Molecular magneto-optics","authors":"P. Gangopadhyay, G. Koeckelberghs, A. Persoons","doi":"10.1117/12.2061841","DOIUrl":"https://doi.org/10.1117/12.2061841","url":null,"abstract":"We report on recent studies of magneto-optic properties and Faraday rotation of polythiophenes and macrocycles of 3- alkylthiophenes. The hypothesis of the existence of persistent currents, analogous to the persistent currents in mesoscopic metal structures, is forwarded as a relevant mechanism basic to the large Faraday rotation in conjugated polymers as well as for the ferromagnetic transition in these polymers at cryogenic temperatures. Macrocycles of alkylthiophenes are presented and discussed as fundamental structures to investigate persistent currents in nanoscopic organic materials.","PeriodicalId":358951,"journal":{"name":"Optics & Photonics - Photonic Devices + Applications","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120975575","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
Strong photoluminescence characteristics of sulforhodamine B attached on photonic crystal 光子晶体上的强光致发光特性
Optics & Photonics - Photonic Devices + Applications Pub Date : 2014-10-27 DOI: 10.1117/12.2061453
Byoung-Ju Kim, K. Kang
{"title":"Strong photoluminescence characteristics of sulforhodamine B attached on photonic crystal","authors":"Byoung-Ju Kim, K. Kang","doi":"10.1117/12.2061453","DOIUrl":"https://doi.org/10.1117/12.2061453","url":null,"abstract":"The optical properties of sulforhodamine B (SRH) impregnated in photonic crystal by two step synthetic processes including a urethane bond formation between a 3-isocyanatopropyl triethoxysilane (ICPTES, -N=C=O) and a SRH with elevated temperature in pyridine and hydrolysis-condensation reactions between synthesized ICPTES/SRH (ICPSRH) and tetraethoxyorthosilicate (TEOS) in NH4OH. The monodisperse silica spheres impregnated the ICPSRH (ICPSRHS) are fabricated. The reduction of the absorption peak at 2270 cm-1 representing asymmetric stretching vibration of –N=C=O indicates the progress of the reaction and new absorption peak at 1712 cm-1 characterizing –C=O stretching vibration indicates the formation of urethane bond. The UV-visible absorption spectra show the broadened spectral line width by intermolecular interaction. The photoluminescence (PL) peak of the SRH in methanol shows a hypsochromic shift with the increase the excitation wavelength. However, the PL peak for the ICPSRH exhibits a bathochromic shift as the excitation wavelength increases. The PL peak for the ICPSRH shows no hypsochromic or bathochromic shift. The PL peaks for SRH in methanol, ICPSRH and ICPSRHS are at 568, 598 and 572 nm, respectively. The main cause of the PL peak shift is due to the intermolecular interaction.","PeriodicalId":358951,"journal":{"name":"Optics & Photonics - Photonic Devices + Applications","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114861625","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
Improving optical limiting of cw lasers with fullerene functionalized gold nanoparticles 利用富勒烯功能化金纳米粒子改善连续波激光器的光限
Optics & Photonics - Photonic Devices + Applications Pub Date : 2014-10-27 DOI: 10.1117/12.2060974
M. C. Frare, V. Weber, C. C. De Filippo, R. Signorini, M. Maggini, R. Bozio
{"title":"Improving optical limiting of cw lasers with fullerene functionalized gold nanoparticles","authors":"M. C. Frare, V. Weber, C. C. De Filippo, R. Signorini, M. Maggini, R. Bozio","doi":"10.1117/12.2060974","DOIUrl":"https://doi.org/10.1117/12.2060974","url":null,"abstract":"In the attempt to improve optical limiting of cw lasers by exploiting the thermo-optic effect exhibited by gold nanostructures, we investigated two coupled systems consisting of either gold nanoparticles (AuNPs) or gold-silica core-shell (AuNSs), both functionalized with a thiolated-fulleropyrrolidine (C60Py). We measured the optical limiting behavior under cw illumination at 514 and 647 nm, resonant with the surface plasmon resonance at around 520 of AuNPs and at 650 nm of AuNSs, respectively. Temporal response analysis shows the variation of transmitted irradiance in a 300 milliseconds time interval, corresponding to the blinking time of the human eye. Comparing the present results we those previously obtained for AuNPs1 we demonstrate an improvement of the response of functionalized nanoparticles (AuNPs- C60Py) with respect to bare AuNPs.","PeriodicalId":358951,"journal":{"name":"Optics & Photonics - Photonic Devices + Applications","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126273770","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
Design and simulation of metal-insulator-metal nanoresonators for color filter applications 金属-绝缘体-金属纳米谐振器的设计与仿真
Optics & Photonics - Photonic Devices + Applications Pub Date : 2014-10-27 DOI: 10.1117/12.2062399
Saswatee Banerjee
{"title":"Design and simulation of metal-insulator-metal nanoresonators for color filter applications","authors":"Saswatee Banerjee","doi":"10.1117/12.2062399","DOIUrl":"https://doi.org/10.1117/12.2062399","url":null,"abstract":"Traditionally, liquid crystal display (LCD) systems employ color filters that are fabricated using organic dye and pigment based colorants. As a result, conventional color filters can lower the system performance by removing substantial amount of incident light through absorption. Also, the transmission bandwidth can be unacceptably large. Furthermore, there is a need to combine functions of multiple optical elements on one, facilitating miniaturization and compactness. Metal-insulator- metal (MIM) nanoresonators that can combine the functions of color filtering and polarizing can provide a useful solution to some of these issues. An MIM nanoresonator structure is proposed for use as color filters. However, the proposed structure uses high refractive index, inorganic materials in the insulator layer. Also, the bandwidth of transmission is not narrow enough to generate saturated color. Here, we simulated some MIM nanoresonator structures that might be realized using relatively low refractive index, polymeric materials and can function as polarizing, color filters in transmission mode. These structures might also yield narrower bandwidths of transmission. The simulations are carried out using a monochromatic version of RC-FDTD. This algorithm uses the 1st order Drude model to evaluate the convolution operation needed to make FDTD stable for metals for which the real part of permittivity is negative. Unlike the conventional RC-FDTD [3], the Drude parameters are computed at each wavelength of the incident light using the corresponding handbook value of permittivity. Hence, this version of RC-FDTD allows us to use the handbook permittivity values at all wavelengths of operation.","PeriodicalId":358951,"journal":{"name":"Optics & Photonics - Photonic Devices + Applications","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131639268","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: 3
Miniaturized low-power electro-optic modulator based on silicon integrated nanophotonics and organic polymers 基于硅集成纳米光子学和有机聚合物的小型化低功耗电光调制器
Optics & Photonics - Photonic Devices + Applications Pub Date : 2014-10-27 DOI: 10.1117/12.2061189
Xingyu Zhang, A. Hosseini, Jingdong Luo, A. Jen, Ray T. Chen
{"title":"Miniaturized low-power electro-optic modulator based on silicon integrated nanophotonics and organic polymers","authors":"Xingyu Zhang, A. Hosseini, Jingdong Luo, A. Jen, Ray T. Chen","doi":"10.1117/12.2061189","DOIUrl":"https://doi.org/10.1117/12.2061189","url":null,"abstract":"We design and demonstrate a compact, low-power, low-dispersion and broadband optical modulator based on electro-optic (EO) polymer refilled silicon slot photonic crystal waveguide (PCW). The EO polymer is engineered for large EO activity and near-infrared transparency. The half-wave switching-voltage is measured to be Vπ=0.97±0.02V over optical spectrum range of 8nm, corresponding to a record-high effective in-device r33 of 1190pm/V and Vπ×L of 0.291±0.006V×mm in a push-pull configuration. Excluding the slow-light effect, we estimate the EO polymer is poled with an ultra-high efficiency of 89pm/V in the slot. In addition, to achieve high-speed modulation, silicon PCW is selectively doped to reduce RC time delay. The 3-dB RF bandwidth of the modulator is measured to be 11GHz, and a modulation response up to 40GHz is observed.","PeriodicalId":358951,"journal":{"name":"Optics & Photonics - Photonic Devices + Applications","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125364100","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
A toy model for the nonlinear optical response of molecules with modulated conjugation 具有调制共轭的分子非线性光学响应的一个玩具模型
Optics & Photonics - Photonic Devices + Applications Pub Date : 2014-10-27 DOI: 10.1117/12.2062471
Quanhang Chen, Surbhi Hablani, Jie Li, J. Pérez-Moreno
{"title":"A toy model for the nonlinear optical response of molecules with modulated conjugation","authors":"Quanhang Chen, Surbhi Hablani, Jie Li, J. Pérez-Moreno","doi":"10.1117/12.2062471","DOIUrl":"https://doi.org/10.1117/12.2062471","url":null,"abstract":"In organic molecules, the optical response originates from the motion of the pi-electrons, which are constrained to move along the molecule’s conjugated path. As an electron moves through the conjugated path, it interacts with the rest of the charges such that its motion is very dependent on the shape of the molecule. In this paper we introduce a simple model for that allows us to determine how the shape of the conjugated path affects the nonlinear optical response of the molecule. Our results apply to typical second-order dipolar structures: we have determined how the symmetry of the conjugated path affects the optical response, and we have found potential new strategies for making better molecules.","PeriodicalId":358951,"journal":{"name":"Optics & Photonics - Photonic Devices + Applications","volume":"131 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122234668","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
Light transmission with self-assembly DNA monolayers through D-shaped optical fiber 自组装DNA单层通过d型光纤的光传输
Optics & Photonics - Photonic Devices + Applications Pub Date : 2014-10-27 DOI: 10.1117/12.2061620
W. Jung, J. Son, J. Hwang, B. Paulson, Byungjoo Kong, Sung Ha Park, K. Oh
{"title":"Light transmission with self-assembly DNA monolayers through D-shaped optical fiber","authors":"W. Jung, J. Son, J. Hwang, B. Paulson, Byungjoo Kong, Sung Ha Park, K. Oh","doi":"10.1117/12.2061620","DOIUrl":"https://doi.org/10.1117/12.2061620","url":null,"abstract":"Deoxyribonucleic acid (DNA) has been a remarkable material in the development of optoelectronic devices for granted these days. In this research, we report on an optical phenomenon of DNA structures grown by a self-assembly process. Discrete 2D nanocrystal structures of DNA were prepared on a light-guiding substrate. The high evanescent field interaction between the guided light supplied via D-shaped optical fiber and DNA monolayers enabled the systematic investigating of the optical properties of DNA nanocrystal structures. In particular, light guided down the fiber and received by an optical spectrum analyzer enabled spectral analysis, while morphology studies of the self-assembly DNA were performed by atomic force microscopy.","PeriodicalId":358951,"journal":{"name":"Optics & Photonics - Photonic Devices + Applications","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124360980","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
下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信