Results 161 to 170 of about 6,091 (303)

A Chiral Saddle‐Shaped Nanographene With Two Heptagon‐Embedded [4]Helicenes

Angewandte Chemie International Edition, EarlyView.
We present a novel synthetic strategy toward a chiral saddle‐shaped nanographene (cSNG) via a two‐step oxidation of a prochiral anthracene precursor. The Scholl‐type oxidation first yields a key intermediate with sp3‐defect heptagons, and subsequent oxidative dehydrogenation affords fully conjugated cSNG.
Felix Trautner, Boris Borrisov, Philipp Royla, Hongqing Zhao, Hartmut Komber, Li Wan, Evgenia Dmitrieva, Ji Ma, Jan J. Weigand, Qun Yang, Xinliang Feng, Wenhui Niu   +11 more
wiley   +1 more source

Temperature stable mid-infrared GaInAsSb/GaSb Vertical Cavity Surface Emitting Lasers (VCSELs). [PDF]

Sci Rep, 2016
Ikyo AB, Marko IP, Hild K, Adams AR, Arafin S, Amann MC, Sweeney SJ.   +6 more
europepmc   +1 more source

Guiding and Manipulating Light Fields in Microstructured Liquid Crystals

Advanced Physics Research, EarlyView.
This review summarizes recent advances in guided‐wave optics enabled by microstructured liquid crystal (LC) devices, covering their fundamental material properties, key degree of freedom for dynamic light field manipulations. The advances of linear guided‐wave optics, nonlinear‐optics with spatial optical solitons, and microlasers in LC‐based devices ...
Shan‐shan Chang, Yong‐shuai Li, Jin‐hui Chen   +2 more
wiley   +1 more source

Surface plasmon modulated nano-aperture vertical-cavity surface-emitting laser

, 2007
We have fabricated surface plasmon modulated nano-aperture vertical-cavity surface-emitting lasers (VCSELs) from common 850 nm VCSELs using focus ion beam etching with Ga+ ion source.
Gao, JX, Chinese Acad Sci, Inst Semicond, Nano Optoelect Lab, Beijing 100083, Peoples R China. 电子邮箱地址: jxgao@red.semi.ac.cn, Gan Q, Guo BS (Guo Bao-Shan), Chen LH (Chen Liang-Hui), Chen L, Song GF (Song Guo-Feng), Gao J, Gao JX (Gao Jian-Xia), Guo B, Song G, Gao, J, Chinese Acad Sci, Inst Semicond, Nanooptoelect Lab, POB 912, Beijing 100083, Peoples R China. 电子邮箱地址: jxgao@red.semi.ac.cn, Gan QQ (Gan Qiao-Qiang)   +11 more
core  

Toward personalized healthcare: Advances in two‐dimensional nanomaterial‐based flexible electrochemical sensors for physiological monitoring

BMEMat, EarlyView.
This review provides an overview of the properties, composites and application of two‐dimensional (2D) nanomaterials for wearable electrochemical biosensors. Also, the challenges and future prospects of utilizing 2D nanomaterials in wearable electrochemical biosensor applications are discussed.
Kou Zhang, Lu Han, He‐Qing Cai, Xin‐Yu Xue, Yi‐Fei Song, Wu‐Lin Xin, Ying‐Ze Wang, Peng Liu, Juan Liu   +8 more
wiley   +1 more source

Wafer Scale III-Nitride Deep-Ultraviolet Vertical-Cavity Surface-Emitting Lasers Featuring Nanometer-Class Control of Cavity Length. [PDF]

Adv Sci (Weinh)
Ji C, Wang J, Xu F, Zhang L, Lang J, Zhang Z, Tan F, Ji C, Zhang J, Zhang E, Kang X, Qin Z, Ju G, Wu J, Yang X, Tang N, Wang X, Ge W, Shen B.   +18 more
europepmc   +1 more source

On the importance of cavity-length and heat dissipation in GaN-based vertical-cavity surface-emitting lasers. [PDF]

Sci Rep, 2015
Liu WJ, Hu XL, Ying LY, Chen SQ, Zhang JY, Akiyama H, Cai ZP, Zhang BP.   +7 more
europepmc   +1 more source

Marine silicon for biomedical sustainability

BMEMat, EarlyView.
Schematic illustrating marine silicon for biomedical engineering. Abstract Despite momentous divergence from oceanic origin, human beings and marine organisms exhibit elemental homology through silicon utilization. Notably, silicon serves as a critical constituent in multiple biomedical processes.
Yahui Han, Zhibo Yang, Wei Xia, Chengtie Wu   +3 more
wiley   +1 more source

Study of far-field reduction in high power 940 nm vertical-cavity surface-emitting lasers cascaded by tunnel junctions. [PDF]

Sci Rep
Huang WH, Shan CY, Chi KL, Xu YJ, Lu TC.
europepmc   +1 more source

Small signal equivalent circuit model of vertical cavity surface emitting lasers

, 2001
Small signal equivalent circuit model of vertical cavity surface emitting lasers (VCSEL's) is given in this paper. The modulation properties of VCSEL are simulated using this model in Pspice program.
Tang J, Mao LH Chinese Acad Sci Inst Semicond State Key Lab Integrated Optoelect POB 912 Beijing 100083 Peoples R China., Chen HD, Liang K, Wu RB, Mao LH, Wu XW, Nian H, Guo WL   +8 more
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