c******k 发帖数: 1140 | 1 用 Rsoft CAD Suite 模拟一个T型diffused waveguide(请见图)。右侧横向的那段
waveguide是经过竖向waveguide旋转90而得到的。但是发现横向waveguide的index
profile 不正确,也就是index profile 并未旋转90度,见相应的右面的index
profile图, 怎么也把这个Index profile 也转过来,实在困惑,多谢啦! |
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z********7 发帖数: 57 | 2 大家好,我的方向PhD是nano photonics和optical waveguide,现在工作的方向是
power switching transistor,如果有review paper的机会,请随时来联系我~ |
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z********7 发帖数: 57 | 3 小弟目前申请EB1中,跪求有photonics和optical waveguide, electrooptics方向的文
章review,我自己之前发表的文章多为integrated resonator optical devices以及
nonlinear optics方向。多谢啦 |
|
z********7 发帖数: 57 | 4 大家好,我的方向PhD是nano photonics和optical waveguide,现在工作的方向是
power switching transistor,如果有review paper的机会,请随时来联系我~ |
|
z********7 发帖数: 57 | 5 小弟目前申请EB1中,跪求有photonics和optical waveguide, electrooptics方向的文
章review,我自己之前发表的文章多为integrated resonator optical devices以及
nonlinear optics方向。多谢啦 |
|
c******k 发帖数: 1140 | 6 Many thanks for your reply.
I realize that you mean I should calculate Neff of 0th mode of the 2D slab
waveguide. In this case, it does not matter the slab width, since the
confinement only happen in the vertical direction, namely 0.65um.
However, if I intend to set a width value for this slab waveguide, this slab
waveguide actually become a strip waveguide (still 3D structure). So the
Neff of a fundamental mode will change with the slab width.
My understanding is correct?
s
the |
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g***4 发帖数: 1 | 7 深海的声波传播很复杂的。在一些情况下,也可以传得非常远的。可以读读所谓的
深海水声通道或声定位测距通道,可类比于光在光纤里光传播
http://en.m.wikipedia.org/wiki/SOFAR_channel
The SOFARchannel is a horizontal layer of water in the ocean at
which depth the speed of sound is at its minimum. The SOFAR
channel acts as a waveguide for sound, and low frequency
sound waves within the channel may travel thousands of miles before
dissipating.[2] This phenomenon is an important factor in
submarine warfare. The deep sou... 阅读全帖 |
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f*******a 发帖数: 80 | 8 The concepts of TE and TM mode vary depending on the context.
a) If you talk about the plane wave propagating in the free space, the
electromagnetic wave is a transverse wave, i.e. the direction of the
electric field and magnetic field are perpendicular to the direction of wave
propagation. This is in contrast to elastic wave, in which the direction of
partical flow can be either perpendicular or parallel to the direction of
propagation. In this context, we don't talk about the mode.
b) Electrom... 阅读全帖 |
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k******9 发帖数: 878 | 9 如果准备买JBL ES80,那Onkyo TX-NR626可以搭配吗,我把参数都列在下面,麻烦高手
看看,谢谢了
JBL ES80. Specifications General Specifications Finish Black Series ES Wall-
Mount Capable No Type Floorstanding Audio Specifications Crossover
Frequencies 700Hz, 3.6kHz a?" 24dB/octave; 12kHz a?" 18dB/octave Maximum
Recommended Amplifier Power 200W Power Handling (Recommended) 100W
Sensitivity (2.83V@1m) 91dB Power Handling (Peak) 400W Nominal Impedance 8
ohms Frequency Response 45Hz a?" 40kHz Speaker Specifications High-Frequncy
Transduc... 阅读全帖 |
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l**j 发帖数: 40 | 10 看看下面就知道我们在美国的大部分人很WS.
代表性论文(引用率>1300, H-index=23)
1. Y. Z. Long, L. Liao*, X. F. Duan, Z. Y. Fan*, Large-scale
Integration of Semiconductor Nanowires for High Performance Flexible
Electronics ACS Nano (In press)
2. L. Liao, J. W. Bai, R. Chen, H. L. Zhou, L. X. Liu, Y. Liu, Y.
Huang, X. F. Duan, Scalable Fabrication of Self-Aligned Graphene Transistors
and Circuits on Glass Nano Lett. (In Press).
3. L. Liao, X. F. Duan Graphene-based RF devices Materials Today (In
Press).
4. ... 阅读全帖 |
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k******9 发帖数: 878 | 11 这种卡拉OK要求的音响,有什么参数要求,这方面一窍不通,听大家说音响容易烧坏,
那是要哪个参数高或者低?有具体的选购参数标准吗?
我在版上翻了翻,有推荐JBL ES80的,还有BOSE301的,前几天看到NEWEGG上有POLK打
折的,等等等,大家可以给个建议吗?
另外如果选好了音响,如何看功放的参数和音响是否匹配,不会烧坏也不会推不上去,
那要看哪几个项目的数值,实在是什么都不懂,望高手帮忙!感激不尽
如果准备买JBL ES80,那Onkyo TX-NR626可以搭配吗,我把参数都列在下面,麻烦高手
看看,谢谢了
JBL ES80. Specifications General Specifications Finish Black Series ES Wall-
Mount Capable No Type Floorstanding Audio Specifications Crossover
Frequencies 700Hz, 3.6kHz a?" 24dB/octave; 12kHz a?" 18dB/octave Maximum
Recommended Amplifier... 阅读全帖 |
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S********I 发帖数: 618 | 12 Title: Professor
Education:
Ph.D., Dalian University of Technology, 1990
牛,也许我见识不够,这位是博士从大陆高校毕业,后来能在北美当教授的,还是
第一次听说。
Teaching Interests: Optical materials, Fiber optics, Waveguide theory,
Electro-optics, Electromagnetics
Research Interests: Optical fiber sensors, Special fiber waveguides,
Components and devices for optical communications and sliprings, 3-D
surface mapping |
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a*********r 发帖数: 14 | 13 对不起,我还真是给武大化学系留了面子。
莫非你就是其中一件丑事的主角,干嘛一触即发,破口大骂呢?
袁荃做的是还不错,但不意味武大化学系就有多好了。
举例来说,即使袁荃和另外一位新招的楚天特聘教授傅磊相比,也能看出武大化学系在其中有没有猫腻了。
首先补充一点:袁荃的老公叫廖蕾,也是武大物理系新招的楚天特聘教授,可以作为很好的对照体系。
比比三人的publication和经历,就能明显看出水平之比是:
廖蕾>袁荃>傅磊
但从袁荃却没有评上楚天特聘。
廖蕾
http://physics.whu.edu.cn/node/557
1. Y. Z. Long, L. Liao*, X. F. Duan, Z. Y. Fan*, Large-scale Integration of Semiconductor Nanowires for High Performance Flexible Electronics ACS Nano (In press)
2. L. Liao, J. W. Bai, R. Chen, H. L. Zh... 阅读全帖 |
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a*********r 发帖数: 14 | 14 对不起,我还真是给武大化学系留了面子。
莫非你就是其中一件丑事的主角,干嘛一触即发,破口大骂呢?
袁荃做的是还不错,但不意味武大化学系就有多好了。
举例来说,即使袁荃和另外一位新招的楚天特聘教授傅磊相比,也能看出武大化学系在其中有没有猫腻了。
首先补充一点:袁荃的老公叫廖蕾,也是武大物理系新招的楚天特聘教授,可以作为很好的对照体系。
比比三人的publication和经历,就能明显看出水平之比是:
廖蕾>袁荃>傅磊
但从袁荃却没有评上楚天特聘。
廖蕾
http://physics.whu.edu.cn/node/557
1. Y. Z. Long, L. Liao*, X. F. Duan, Z. Y. Fan*, Large-scale Integration of Semiconductor Nanowires for High Performance Flexible Electronics ACS Nano (In press)
2. L. Liao, J. W. Bai, R. Chen, H. L. Zh... 阅读全帖 |
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c******k 发帖数: 1140 | 15 就是在SOI wafer(0.75um Si and 1.0um SiO2)上设计一个单模的Ridge waveguide.用
经典公式近似了一下,参数如下:
Width: 1.5um, total waveguide height: 0.75um, etching depth: 0.1um. 所以,
Slab height: 0.65um
但是想用设计软件验证一下,实验室有Rsoft CAD photonic suite, 结果请见图:支持
N多mode, 这个Rsoft总是把Slab也当成波导的一部分,怎么办,是软件参数设置的不对
吗?谢谢 |
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m******e 发帖数: 44 | 16 Let's say, we have a rectangular waveguide, with one end shorted, and the
other end with absorbing boundary, in the middle of the waveguide, we have a
incident plane wave excitation. So how should we model this incident plane
wave excitation numerically? by equivalent surface magnetic current density?
or use a total = incident + scattering fields decomposition, with the total
field solved on the side of shorted end and scattered field on the open end
? I did not get reasonable results either way... 阅读全帖 |
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c******k 发帖数: 1140 | 17 最近review一篇IEEE photonics technology letters的手稿,作者已经发表了这个类
似的器件结构在optics letter上,那么作者改变了下器件结构,并没大的改变。举个
例子,两条waveguide的耦合,现在变成三条waveguide的耦合(PTL),那么图表、数
据的类别跟Optics letter发表的类似,尽管实际数据值不太一样,这么我还能推荐发
在IEEE PTL吗?谢谢 |
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c*********5 发帖数: 5813 | 18 以后的技术就是要利这个量子效应,比如light waveguide, 直接光子传导,根本就不
需要Si |
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t**********8 发帖数: 1683 | 19
Do you know what's an optical waveguide? |
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t**********8 发帖数: 1683 | 20
you even don't know an optical waveguide and you are still talking about the
whole silicon industry?
BTW: do you know what's Kadence? |
|
x********i 发帖数: 905 | 21 Intel STS 2015 Finalists
Anandapadmanaban, Eswar
Dr. Ronald E. McNair Academic High School, Jersey City, NJ
The ThereNIM: A Touch-less Respiratory Monitor
Ashkin, Emily Lorin
Providence Day School, Charlotte, NC
A Novel Synergistic Approach for Enhancing Immunotherapy in the Treatment of
Melanoma
Chemparathy, Augustine George
Dougherty Valley High School, San Ramon, CA
Accumulation of the Biodiesel Precursor Triacylglycerol Offsets Oxidative
Stress in the Model Alga Chlamydomonas reinhardtii
Cui... 阅读全帖 |
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l*******u 发帖数: 2496 | 22 ☆─────────────────────────────────────☆
win98 (waveguide) 于 (Sun Mar 22 08:24:43 2009) 提到:
被打的一驮屎一样,对二战的贡献微乎其微。罗斯福当初提出的也是‘四警察’,不是
5国啊,法国是怎么混进来的?
☆─────────────────────────────────────☆
mingo (豺狼虎豹四不象) 于 (Mon Apr 20 18:53:20 2009) 提到:
联合国和国际货币基金组织是罗斯福整个战后世界蓝图的两大基石,罗斯福构想以这两
大组织为基础,以大国合作的方式实现美国在战后世界的霸主地位。
五大国的人选中苏、美、英三国不用说,而把中、法加进去则完全出于各国利益与权力
的争夺的考虑。美国预见到,作为大洋彼岸的国家,在战后要遏制“苏联的威胁”就必
须拉拢西欧,而法国是欧洲大陆的盟主,让法国进入联合国自然是题中之意。对于英国
,法国同为欧洲国家,可以和他一起抗衡美苏,维持英帝国虚弱的国际地位。
至于中国的加入,二战中的贡献和宋美龄的公关能力固然有一定作用,但这些 |
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a***n 发帖数: 148 | 23 Kao, C.K. , Hockham, G.A. (1966) Dielectric-fibre Surface Waveguides for
Optical Frequencies. Proceedings of the Institution of Electrical Engineers-
London 113, p. 1151.
楼主查的是这篇吗?我也是听人说的,我在ISI上我查了,查不到。也许我搞错了。
至于好的研究是否一定popular,我真不敢苟同。我说的“牛人”和我一个方向(或者
说我跟随他开创的很多方向之一吧)。他的相关经典文献我是仔细查过的。
不过不和楼主争了--楼主正在上升期,年轻气盛也是正常(我十年可能也差不多)
祝楼主一统江湖! |
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l*******b 发帖数: 97 | 24 小弟在攒审稿申请EB1,恳请版上相关领域的老师如果有这方面的稿件,或者是某杂志
的编辑,可以refer我为reviewer。在此腆着厚脸谢谢大家。
如需姓名和邮箱,麻烦站短给我,不知道这样算不算诚意不够(掩面)。
大家新年快乐! |
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l*******b 发帖数: 97 | 25 小弟在攒审稿申请EB1,恳请版上相关领域的老师如果有这方面的稿件,或者是某杂志
的编辑,可以refer我为reviewer。在此腆着厚脸谢谢大家。
如需姓名和邮箱,麻烦站短给我,不知道这样算不算诚意不够(掩面)。
大家新年快乐! |
|
l*******b 发帖数: 97 | 26 小弟又来求审稿了。上次发帖承蒙一些前辈不嫌,有幸得到机会。希望能继续得到前辈
的指点和帮助。不胜感激!谢谢大家! |
|
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B*D 发帖数: 5016 | 28 不过我觉得PSB revel一类的厂家
是否走得还是传统的好单元加做工好的箱子这种路线?
感觉Genelec一类的厂家更加注重声学技术的运用
比如8260A,等一些喇叭上用
“acoustically optimized rounded edges to prevent diffractions and yielding
superb sound stage imaging”
和什么waveguide技术的同轴单元
当然还有主动音箱的一套filter 分频 room correction等
【hifiman (hardcorehifi) 的大作中提到: 】 |
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t******0 发帖数: 629 | 29 谢谢高手回复。
小弟在此汇报一下自己的方向,请高手指条明路:
硕士阶段主要项目就是EDFA,GaN waveguide设计,用仿真软件计算电磁场Mode的分布
,lifetime&across-section测量,用Matlab做物理公式计算出效率和Gain spectrum之
类的。有时WDM一下。
通常,我设计最优波导结构,发给工厂或者物理学院,我顶多CAD一个DXF,GDSII版图
之类的东西;
但是,我没有超净室经验,片子是物理学院为我们现成的,拿回来搭建测量系统,开始
各种measurement。如果实验和之前的理论一致,开始写paper。
现在又开始研究graphene, metal nanoparticle, solar cell之类的东西很杂。
请问我这算是什么呢?
超净室:我没进去过,不知道怎么做fabrication和工艺;
激光:semiconductor laser,温控&流控&电路&调制。。。(有时烧激光器:P)
硬件编程:您指的是什么?FPGA吗?
大环境:我们组做Photonics的就我一个人,其他人都是telecommunication方面的,之
前我找... 阅读全帖 |
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c*********8 发帖数: 75 | 30 我是ee fresh phd, 背景主要做silicon photonic waveguides, resonator的(
simulation, fabrication, test),找工作中. 有朋友在相关领域工作么?麻烦站内联
系,谢谢:) |
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t*****i 发帖数: 4 | 31 Research Assistant in Optical Sensors, ECE (Boston Area)
Start date: Spring 2008
Position: PhD RA in Optical Fiber Sensors
Organization: Electrical & Computer Engineering Department, UMASS- Lowell
Location: Lowell, USA
Description:
A highly motivated PhD RA in optical fiber sensors is needed. Our current
research includes biosensors, sensors for harsh environment, MEMS technology
applied in optical field, special fiber waveguides, and adaptive optical
sensors.
Our center features:
Goo |
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t*****i 发帖数: 4 | 32 Research Assistant in Optical Sensors, ECE (Boston Area)
Start date: Spring 2008
Position: PhD RA in Optical Fiber Sensors
Organization: Electrical & Computer Engineering Department, UMASS- Lowell
Location: Lowell, USA
Description:
A highly motivated PhD RA in optical fiber sensors is needed. Our current
research includes biosensors, sensors for harsh environment, MEMS technology
applied in optical field, special fiber waveguides, and adaptive optical
sensors.
Our center features:
Goo |
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d**********0 发帖数: 13081 | 33 这个学校是天才的摇篮, 300 中占了15名。。
The Harker School, San Jose, CA
Dixit, Shikhar, 17
Immunomodulation by Human Retinal Pigment Epithelial Cell Line ARPE-19
Jin, Andrew, 17
Shedding Light on Human Evolution: Machine Learning Algorithms for
Systematic
Genome-wide Discovery and Characterization of Adaptive Mutations
Kuditipudi, Rohith, 18
Network-based Integration of High Throughput Gene Expression and Methylation
Data
Lin, David, 17
Physical Properties and Evolution of
Lin, David, 17
Physical Properties an... 阅读全帖 |
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y***q 发帖数: 98 | 34 Job Title: Research Assistant (Post Doctoral Fellow)
Department: Institute of Nanoscale of Material Science and Engineering /
Nano
Annual Salary: Salary will be commensurate with experience and education
.
Description: A research assistant (Post Doctoral Fellow) position is ava
ilable at the Institute of Nanoscale of Material Science and Engineering
and the Department of Electrical Engineering to develop novel semicondu
ctor optoelectronics devices such as lasers and detectors and high frequ
en... 阅读全帖 |
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b*****9 发帖数: 8922 | 35 ☆─────────────────────────────────────☆
ypockcalb (ypockcalb) 于 (Sun Aug 15 15:07:32 2010, 美东) 提到:
这家伙比较能吹!在bell lab 做了几年高级劳工,又在普林斯顿混了两年technical
staff就能千人,大家好好学学人家是怎么忽悠的!这家伙在bell lab的位置自己给出来
了,还算诚实,但是自己提高了在普林斯顿的位置。普林斯顿这个中红外材料实验室是
他老板Claire F. Gmachl离开bell lab后创建的,英文名称应该为MIRTHE(mid-
infrared technolies for health and evironments),相关链接为
http://www.mirthecenter.org/。Claire F. Gmachl的主页为http://www.ee.princeton.edu/people/Gmachl.php。这家伙号称在量子级联激光器领域作出的贡献都是一些挂名的工作,从WEb of science 的搜索看,一共可以找到大概13篇... 阅读全帖 |
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f********y 发帖数: 20 | 36 下面这些文章都是仇旻(2011年已经号称全职回浙大,但是瑞典的组这两年仍然继续招
收硕士博士生),领导的瑞典课题组的2013-2014年度部分文章,即拿大千人,又以瑞典
国籍(仇旻本人已放弃中国国籍)拿到中国的杰青,是不是有点明目张胆了。。。
All-optical switching of silicon disk resonator based on photothermal effect
in metal-insulator-metal absorber
Thermal radiation dynamics in two parallel plates: The role of near field
Ultra-narrow-band light dissipation by a stack of lamellar silver and
alumina
Whispering gallery mode nanodisk resonator based on layered metal-dielectric
waveguide
Lithography-free broadband v... 阅读全帖 |
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b*********r 发帖数: 33 | 37 if you have hand on experience on Microwave transceiver, waveguide diplexer,
IF band board, system, there is a very good opportunity, got funding for a
start up, very early stage, if you have interest, please contact me: future_
[email protected], include description or resume. |
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a*****y 发帖数: 33185 | 38 Zhou, Guorui, et al. "Investigation of Properties of Symmetrical Al-Cladding
Optical Waveguides Modulated by the Voltage." Integrated Ferroelectrics 136
.1 (2012): 15-21.
这杂志我在的单位没access,拜托板上哪位能帮忙下一下,包子酬谢 |
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t******w 发帖数: 225 | 39 Progress in Electromagnetic Research (PIER, PIER B,C,M, PIER Letters)
这个Journal在2011年有很好的IF,5.298。
However, it was not listed in 2012 because of "anomalous citation patterns
resulting in a significant distortion of the Journal Impact Factor, so that
the rank does not reflect the journal's citation performance in the
literature".
Anyway, 对于积攒review经历还是有帮助的
关键词:weak light detection, telecommunication wavelength (1550 nm),
microwave coplanar waveguide resonator, resonance frequency shift
需要者发背景(Tit... 阅读全帖 |
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y**********9 发帖数: 566 | 40 5. Irfan Fazal, Saurabh Kumar, Poorya Saghari, Lou C. Christen,
Yunchu Li, Alan E. Willner, Martin M. Fejer, “SOA assisted data-
polarization-insensitive wavelength conversion in a PPLN waveguide by cross-
polarization-modulation of the pump using an SOA,” 2006 Optical Fiber
Communication Conference, and the 2006 National Fiber Optic Engineers
Conference, v 2006, Proceedings - Thirteenth International Symposium on
Temporal Representation and Reasoning, TIME 2006, p 1636718.
6. Yangjin... 阅读全帖 |
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c*********8 发帖数: 75 | 41 版上的朋友有没有能够推荐光学review? 我是optics, photonics背景,对waveguide,
resonator熟悉,给以下杂志review过:
Applied Optics, Optics Letters, Optics Express and Journal of the Optical
Society of America B and IEEE Photonics Journal
有相关review的朋友可以站内信。非常感谢。 |
|
|
y**********9 发帖数: 566 | 43 G. Hatakoshi, H. Fujima, and K. Goto, “Waveguide grating lenses
for optical couplers,” Appl. Opt., vol. 23, pp. 1749-1753, 1984
my email address is [email protected]
/* */
Baozi is available. Thank you very much. |
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y**********9 发帖数: 566 | 44 Self﹊maging in homogeneous planar optical waveguides
R. Ulrich1 and G. Ankele1
Appl. Phys. Lett. 27, 337 (1975)
我的邮箱是 [email protected]/* */
非常感谢,有包子送。 |
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w*****n 发帖数: 134 | 45 求审稿机会
关键词:
Nanophotonics, waveguide, optical communication, wavelength division
multiplexing, integrated optical devices, mid-infrared photonics, nonlinear
optics, MEMS/NMES
and optical sensors
目前审过以下期刊
Optics express, Optics Lett, Applied optics, IEEE Photonics, IEEE JLT
请发邮件到联系,可以发CV给你。
[email protected]/* */
谢谢啦! |
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l*******b 发帖数: 97 | 46 小弟在攒审稿申请EB1,恳请版上相关领域的朋友如果有这方面的稿件,或者是某杂志
的编辑,可以refer我为reviewer。在此腆着厚脸谢谢大家。
祝大家心想事成,早日实现梦想。 |
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i***l 发帖数: 468 | 48 【 以下文字转载自 Military 讨论区 】
发信人: xiaoxiaoxi (小小溪), 信区: Military
标 题: Re: 全美英特尔科学奖决赛名单公布 13名华裔入围
发信站: BBS 未名空间站 (Sat Jan 24 16:00:54 2015, 美东)
Intel STS 2015 Finalists
Anandapadmanaban, Eswar
Dr. Ronald E. McNair Academic High School, Jersey City, NJ
The ThereNIM: A Touch-less Respiratory Monitor
Ashkin, Emily Lorin
Providence Day School, Charlotte, NC
A Novel Synergistic Approach for Enhancing Immunotherapy in the Treatment of
Melanoma
Chemparathy, Augustine George
Dougherty Valley High School, Sa... 阅读全帖 |
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b*******t 发帖数: 33714 | 49 不对,50um的waveguide的模应该反而很大,说不定可以直接couple的 |
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