Optics & Photonics - NanoScience + Engineering最新文献_第2页

Deoxyribonucleic acid-Ag nanoparticles for EMI Shielding: the effect of nanoparticle size, shape and distribution on the shielding effectiveness 用于电磁干扰屏蔽的脱氧核糖核酸-银纳米颗粒:纳米颗粒大小、形状和分布对屏蔽效果的影响

Optics & Photonics - NanoScience + Engineering Pub Date : 2014-09-23 DOI: 10.1117/12.2063787

F. Ouchen, Benjamin G. Wilson, P. Yaney, M. Salour, J. Grote

引用次数: 4

Natural materials for nano bio systems 纳米生物系统的天然材料

Optics & Photonics - NanoScience + Engineering Pub Date : 2014-09-23 DOI: 10.1117/12.2066685

F. Ouchen, P. Yaney, D. Joyce, A. Williams, Eliot F Gomez, G. Subramanyam, J. Grote

引用次数: 0

Investigation of a DNA nucleobase as a gate dielectric for potential application in a graphene-based field effect transistor DNA核碱基作为栅极电介质在石墨烯基场效应晶体管中的潜在应用研究

Optics & Photonics - NanoScience + Engineering Pub Date : 2014-09-23 DOI: 10.1117/12.2063170

A. Williams, F. Ouchen, Steve S. Kim, Y. Ngo, S. Elhamri, S. Mou, G. Kozlowski, R. Naik, J. Grote

引用次数: 1

Summary report on AFRL studies of the optical and electrical properties of biopolymers using salmon DNA 利用鲑鱼DNA的生物聚合物光学和电学特性的AFRL研究摘要报告

Optics & Photonics - NanoScience + Engineering Pub Date : 2014-09-23 DOI: 10.1117/12.2070435

P. Yaney, F. Ouchen, J. Grote

{"title":"Summary report on AFRL studies of the optical and electrical properties of biopolymers using salmon DNA","authors":"P. Yaney, F. Ouchen, J. Grote","doi":"10.1117/12.2070435","DOIUrl":"https://doi.org/10.1117/12.2070435","url":null,"abstract":"The Materials and Manufacturing Directorate of the Air Force Research Laboratory (AFRL) began studies of deoxyribonuclaic acid (DNA) as a polymer material in 2001 due to the availability of multi-gram quantities of 98% pure DNA extracted from Japanese salmon waste products. The research studies that followed explored the electrical, optical and electrooptical characteristics of thin films of DNA combined with the surfactant hexacytltrimethylammonium chloride making the resulting DNA-CTMA complex soluble in most polar solvents and insoluble in water. The films were produced mainly by spin coating although other techniques were also used. The focus was to measure the fundamental properties, such as volume electrical resistivity, dielectric constant, refractive index and thermal conductivity, and to explore various applications using test device configurations such as an optical modulator, OFET, OLED and energy storage capacitor fabricated using DNA-CTMA. The initial high molecular weight of 2,000 to >8,000 kDa was reduced by high power ultrasonic treatment, which provided molecular weight materials from 1,000 down to ~200 kDa. These lower molecular weight materials revealed changes in some properties of the DNA-CTMA material. This paper brings together the results of these studies to show the potential of DNA as a polymer material.","PeriodicalId":128143,"journal":{"name":"Optics & Photonics - NanoScience + Engineering","volume":"9171 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129825575","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

Micro- and nano-particle trapping using fibered optical nano-tweezers 利用光纤纳米镊子捕获微纳米粒子

Optics & Photonics - NanoScience + Engineering Pub Date : 2014-09-17 DOI: 10.1117/12.2061623

Jean-Baptiste Decombe, G. Dantelle, T. Gacoin, F. Valdivia-Valero, G. Colas des Francs, S. Huant, J. Fick

引用次数: 3

Multiscale manipulation of microbubbles employing simultaneous optical and acoustical trapping 采用同时光学和声学捕获的微气泡的多尺度操作

Optics & Photonics - NanoScience + Engineering Pub Date : 2014-09-17 DOI: 10.1117/12.2061622

C. Fury, P. Jones, G. Memoli

引用次数: 5

Natural user interface as a supplement of the holographic Raman tweezers 自然用户界面作为全息拉曼镊子的补充

Optics & Photonics - NanoScience + Engineering Pub Date : 2014-09-16 DOI: 10.1117/12.2061024

Z. Tomori, J. Kaňka, P. Keša, P. Jákl, M. Sery, S. Bernatová, M. Antalík, P. Zemánek

{"title":"Natural user interface as a supplement of the holographic Raman tweezers","authors":"Z. Tomori, J. Kaňka, P. Keša, P. Jákl, M. Sery, S. Bernatová, M. Antalík, P. Zemánek","doi":"10.1117/12.2061024","DOIUrl":"https://doi.org/10.1117/12.2061024","url":null,"abstract":"Holographic Raman tweezers (HRT) manipulates with microobjects by controlling the positions of multiple optical traps via the mouse or joystick. Several attempts have appeared recently to exploit touch tablets, 2D cameras or Kinect game console instead. We proposed a multimodal “Natural User Interface” (NUI) approach integrating hands tracking, gestures recognition, eye tracking and speech recognition. For this purpose we exploited “Leap Motion” and “MyGaze” low-cost sensors and a simple speech recognition program “Tazti”. We developed own NUI software which processes signals from the sensors and sends the control commands to HRT which subsequently controls the positions of trapping beams, micropositioning stage and the acquisition system of Raman spectra. System allows various modes of operation proper for specific tasks. Virtual tools (called “pin” and “tweezers”) serving for the manipulation with particles are displayed on the transparent “overlay” window above the live camera image. Eye tracker identifies the position of the observed particle and uses it for the autofocus. Laser trap manipulation navigated by the dominant hand can be combined with the gestures recognition of the secondary hand. Speech commands recognition is useful if both hands are busy. Proposed methods make manual control of HRT more efficient and they are also a good platform for its future semi-automated and fully automated work.","PeriodicalId":128143,"journal":{"name":"Optics & Photonics - NanoScience + Engineering","volume":"129 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114253082","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

Bulk GaN and its application as substrates in building quantum nanostructures for some electronic and optoelectronic devices 块状氮化镓及其作为衬底在某些电子和光电子器件中构建量子纳米结构的应用

Optics & Photonics - NanoScience + Engineering Pub Date : 2014-09-16 DOI: 10.1117/12.2059749

M. Boćkowski

引用次数: 1

On-chip optical trapping for atomic applications 用于原子应用的片上光学捕获

Optics & Photonics - NanoScience + Engineering Pub Date : 2014-09-16 DOI: 10.1117/12.2064311

M. A. Perez, Evan A. Salim, D. Farkas, Janet Duggan, M. Ivory, D. Anderson

{"title":"On-chip optical trapping for atomic applications","authors":"M. A. Perez, Evan A. Salim, D. Farkas, Janet Duggan, M. Ivory, D. Anderson","doi":"10.1117/12.2064311","DOIUrl":"https://doi.org/10.1117/12.2064311","url":null,"abstract":"To simplify applications that rely on optical trapping of cold and ultracold atoms, ColdQuanta is developing techniques to incorporate miniature optical components onto in-vacuum atom chips. The result is a hybrid atom chip that combines an in-vacuum micro-optical bench for optical control with an atom chip for magnetic control. Placing optical components on a chip inside of the vacuum system produces a compact system that can be targeted to specific experiments, in this case the generation of optical lattices. Applications that can benefit from this technology include timekeeping, inertial sensing, gravimetry, quantum information, and emulation of quantum many-body systems. ColdQuanta’s GlasSi atom chip technology incorporates glass windows in the plane of a silicon atom chip. In conjunction with the in-vacuum micro-optical bench, optical lattices can be generated within a few hundred microns of an atom chip window through which single atomic lattice sites can be imaged with sub-micron spatial resolution. The result is a quantum gas microscope that allows optical lattices to be studied at the level of single lattice sites. Similar to what ColdQuanta has achieved with magneto-optical traps (MOTs) in its miniMOT system and with Bose- Einstein condensates (BECs) in its RuBECi(R) system, ColdQuanta seeks to apply the on-chip optical bench technology to studies of optical lattices in a commercially available, turnkey system. These techniques are currently being considered for lattice experiments in NASA’s Cold Atom Laboratory (CAL) slated for flight on the International Space Station.","PeriodicalId":128143,"journal":{"name":"Optics & Photonics - NanoScience + Engineering","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126660126","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

Pulsed laser activated cell sorter (PLACS) for high-throughput fluorescent mammalian cell sorting 脉冲激光激活细胞分选仪(PLACS)用于高通量荧光哺乳动物细胞分选

Optics & Photonics - NanoScience + Engineering Pub Date : 2014-09-16 DOI: 10.1117/12.2060914

Yue Chen, Ting-Hsiang Wu, Aram J. Chung, Y. Kung, M. Teitell, D. Di Carlo, P. Chiou

{"title":"Pulsed laser activated cell sorter (PLACS) for high-throughput fluorescent mammalian cell sorting","authors":"Yue Chen, Ting-Hsiang Wu, Aram J. Chung, Y. Kung, M. Teitell, D. Di Carlo, P. Chiou","doi":"10.1117/12.2060914","DOIUrl":"https://doi.org/10.1117/12.2060914","url":null,"abstract":"We present a Pulsed Laser Activated Cell Sorter (PLACS) realized by exciting laser induced cavitation bubbles in a PDMS microfluidic channel to create high speed liquid jets to deflect detected fluorescent samples for high speed sorting. Pulse laser triggered cavitation bubbles can expand in few microseconds and provide a pressure higher than tens of MPa for fluid perturbation near the focused spot. This ultrafast switching mechanism has a complete on-off cycle less than 20 μsec. Two approaches have been utilized to achieve 3D sample focusing in PLACS. One is relying on multilayer PDMS channels to provide 3D hydrodynamic sheath flows. It offers accurate timing control of fast (2 m sec-1) passing particles so that synchronization with laser bubble excitation is possible, an critically important factor for high purity and high throughput sorting. PLACS with 3D hydrodynamic focusing is capable of sorting at 11,000 cells/sec with >95% purity, and 45,000 cells/sec with 45% purity using a single channel in a single step. We have also demonstrated 3D focusing using inertial flows in PLACS. This sheathless focusing approach requires 10 times lower initial cell concentration than that in sheath-based focusing and avoids severe sample dilution from high volume sheath flows. Inertia PLACS is capable of sorting at 10,000 particles sec-1 with >90% sort purity.","PeriodicalId":128143,"journal":{"name":"Optics & Photonics - NanoScience + Engineering","volume":"151 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116503648","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