arXiv: Applied Physics最新文献_第8页

Parameter optimization of light outcoupling structures for high-efficiency organic light-emitting diodes 高效有机发光二极管光解耦结构参数优化

arXiv: Applied Physics Pub Date : 2020-07-17 DOI: 10.1063/5.0022497

Dinara Samigullina, P. Will, L. Galle, Simone Lenk, J. Grothe, S. Kaskel, S. Reineke

引用次数: 3

Perfect Absorption in Mirror-Symmetric Acoustic Metascreens 镜面对称声学元屏的完美吸收

arXiv: Applied Physics Pub Date : 2020-07-16 DOI: 10.1103/physrevapplied.14.054055

V. Romero-Garc'ia, N. Jim'enez, J. Groby, A. Merkel, Vincent Tournat, G. Theocharis, O. Richoux, V. Pagneux

引用次数: 17

High Contrast Probe Cleavage Detection 高对比度探针解理检测

arXiv: Applied Physics Pub Date : 2020-07-15 DOI: 10.1364/FIO.2020.JTU7C.3

M. Dubrovsky, Morgan G. Blevins, S. Boriskina, Diedrik Vermeulen SiPhox Inc., Cambridge, Ma, Usa, M. I. O. Technology

{"title":"High Contrast Probe Cleavage Detection","authors":"M. Dubrovsky, Morgan G. Blevins, S. Boriskina, Diedrik Vermeulen SiPhox Inc., Cambridge, Ma, Usa, M. I. O. Technology","doi":"10.1364/FIO.2020.JTU7C.3","DOIUrl":"https://doi.org/10.1364/FIO.2020.JTU7C.3","url":null,"abstract":"Photonic biosensors that use optical resonances to amplify biological signals associated with the adsorption of low-index biological markers offer high-sensitivity detection capability, real-time readout, and scalable low-cost fabrication. However, they lack inherent target specificity and can be sensitive to temperature variations and other noise sources. In this letter, we introduce a concept of the High Contrast Probe Cleavage Detection (HCPCD) mechanism, which makes use of the dramatic optical signal amplification caused by cleavage of large numbers of high-contrast nanoparticle labels instead of the adsorption of low-index biological molecules. We illustrate numerically the HCPCD detection mechanism with an example of a silicon ring resonator as an optical transducer with gold and silicon nanoparticles as high-contrast labels. Simulations show that it is possible to detect a single cleavage-event by monitoring spectral shifts of micro-ring resonances. Furthermore, detection specificity and signal amplification can be achieved through the use of collateral nucleic acid cleavage caused by enzymes such as CAS12a and CAS13 after binding to a target DNA/RNA sequence.","PeriodicalId":8423,"journal":{"name":"arXiv: Applied Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78025704","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

Communication—Conductive Paintable 2D Layered MoS2 Inks 通信导电可涂二维层状MoS2油墨

arXiv: Applied Physics Pub Date : 2020-07-15 DOI: 10.1149/2162-8777/abc1c0

Elaine Carroll, Darragh Buckley, D. McNulty, C. O’Dwyer

引用次数: 2

Temperature dependence of reconfigurable bandstop filters using vanadium dioxide switches 使用二氧化钒开关的可重构带阻滤波器的温度依赖性

arXiv: Applied Physics Pub Date : 2020-07-14 DOI: 10.1063/5.0021942

A. Muller, M. Cavalieri, A. Ionescu

{"title":"Temperature dependence of reconfigurable bandstop filters using vanadium dioxide switches","authors":"A. Muller, M. Cavalieri, A. Ionescu","doi":"10.1063/5.0021942","DOIUrl":"https://doi.org/10.1063/5.0021942","url":null,"abstract":"In this letter we report and investigate the temperature dependency of various radio frequency parameters (RF) for a fabricated reconfigurable bandstop filter with vanadium dioxide (VO2) switches measured up to 55 GHz. Here the insulator to metal (ITM) and metal to insulator transition (MIT) hysteresis of the VO2 thin film influence on the RF characteristics of the filters is analyzed from 25 °C and 120 °C in heating and cooling. The resonance frequency and maximum insertion loss (IL) stability and sensitivity with temperature variations are explored. It is noticed that increasing the temperature with 50 °C from 25 °C (or decreasing it with 50 °C from 120 °C) will result in a less than 1% fractional frequency shift in respect to the off and on resonance frequencies. The sharp DC conductivity levels variations of the VO2 thin film around the transition temperatures translate into sharp effects on the resonance characteristics of the filters. On the contrary, the maximum IL levels are less sensitive to the DC films sharp conductivity changes around the VO2 transition temperature. Last, we see that the RF parameters in heating and cooling at 80 °C, above (but close to) the DC transition temperatures of VO2 exhibit completely different resonance frequencies. The RF results reported close to the transition temperatures for the VO2 thin films can diverge in heating and cooling, thus of a more insightful understanding of VO2 reconfigurable RF devices has to include temperature dependent measurements at various temperatures below MIT and ITM in the RF ranges too","PeriodicalId":8423,"journal":{"name":"arXiv: Applied Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89248054","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

Isotropic conduction and negative photoconduction in ultrathin PtSe2 films 超薄PtSe2薄膜的各向同性导电和负光导

arXiv: Applied Physics Pub Date : 2020-07-11 DOI: 10.1063/5.0021009

F. Urban, F. Gity, P. Hurley, N. McEvoy, A. Di Bartolomeo

引用次数: 18

Slow propagation of 2 GHz acoustical waves in a suspended GaAs phononic waveguide on insulator 绝缘体上悬浮式砷化镓声子波导中2ghz声波的慢传播

arXiv: Applied Physics Pub Date : 2020-07-10 DOI: 10.1063/5.0019949

G. Modica, R. Zhu, R. Horváth, G. Beaudoin, I. Sagnes, R. Braive

引用次数: 6

Gigahertz Phononic Integrated Circuits on Thin-Film Lithium Niobate on Sapphire 蓝宝石上铌酸锂薄膜的千兆赫声子集成电路

arXiv: Applied Physics Pub Date : 2020-07-09 DOI: 10.1103/PHYSREVAPPLIED.15.014039

Felix M. Mayor, Wentao Jiang, Christopher J. Sarabalis, T. McKenna, J. Witmer, A. Safavi-Naeini

{"title":"Gigahertz Phononic Integrated Circuits on Thin-Film Lithium Niobate on Sapphire","authors":"Felix M. Mayor, Wentao Jiang, Christopher J. Sarabalis, T. McKenna, J. Witmer, A. Safavi-Naeini","doi":"10.1103/PHYSREVAPPLIED.15.014039","DOIUrl":"https://doi.org/10.1103/PHYSREVAPPLIED.15.014039","url":null,"abstract":"Acoustic devices play an important role in classical information processing. The slower speed and lower losses of mechanical waves enable compact and efficient elements for delaying, filtering, and storing of electric signals at radio and microwave frequencies. Discovering ways of better controlling the propagation of phonons on a chip is an important step towards enabling larger scale phononic circuits and systems. We present a platform, inspired by decades of advances in integrated photonics, that utilizes the strong piezoelectric effect in a thin film of lithium niobate on sapphire to excite guided acoustic waves immune from leakage into the bulk due to the phononic analogue of index-guiding. We demonstrate an efficient transducer matched to 50 ohm and guiding within a 1-micron wide mechanical waveguide as key building blocks of this platform. Putting these components together, we realize acoustic delay lines, racetrack resonators, and meander line waveguides for sensing applications. To evaluate the promise of this platform for emerging quantum technologies, we characterize losses at low temperature and measure quality factors on the order of 50,000 at 4 kelvin. Finally, we demonstrate phononic four-wave mixing in these circuits and measure the nonlinear coefficients to provide estimates of the power needed for relevant parametric processes.","PeriodicalId":8423,"journal":{"name":"arXiv: Applied Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87407587","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: 28

Charge-pumping with finger capacitance in a custom electrostatic energy harvesting ASIC 一种定制静电能量收集专用集成电路中带指电容的电荷泵送

arXiv: Applied Physics Pub Date : 2020-07-09 DOI: 10.1063/5.0014008

A. Y. Zhou, M. Maharbiz

引用次数: 1

Extended Short-Wave Infrared Absorption in Group-IV Nanowire Arrays 四族纳米线阵列中短波红外吸收的扩展

arXiv: Applied Physics Pub Date : 2020-07-07 DOI: 10.1103/PHYSREVAPPLIED.15.014034

A. Attiaoui, É. Bouthillier, G. Daligou, A. Kumar, S. Assali, O. Moutanabbir

{"title":"Extended Short-Wave Infrared Absorption in Group-IV Nanowire Arrays","authors":"A. Attiaoui, É. Bouthillier, G. Daligou, A. Kumar, S. Assali, O. Moutanabbir","doi":"10.1103/PHYSREVAPPLIED.15.014034","DOIUrl":"https://doi.org/10.1103/PHYSREVAPPLIED.15.014034","url":null,"abstract":"Engineering light absorption in the extended short-wave infrared (e-SWIR) range using scalable materials is a long-sought-after capability that is crucial to implement cost-effective and high-performance sensing and imaging technologies. Herein, we demonstrate enhanced, tunable e-SWIR absorption using silicon-integrated platforms consisting of ordered arrays of metastable GeSn nanowires with Sn content reaching 9 at.% and variable diameters. Detailed simulations were combined with experimental analyses to systematically investigate light-GeSn nanowire interactions to tailor and optimize the nanowire array geometrical parameters and the corresponding optical response. The diameter-dependent leaky mode resonance peaks are theoretically predicted and experimentally confirmed with a tunable wavelength from 1.5 to 2.2 {mu}m. A three-fold enhancement in the absorption with respect to GeSn layers at 2.1 {mu}m was achieved using nanowires with a diameter of 325 nm. Finite difference time domain simulations unraveled the underlying mechanisms of the e-SWIR enhanced absorption. Coupling of the HE11 and HE12 resonant modes to nanowires is observed at diameters above 325 nm, while at smaller diameters and longer wavelengths the HE11 mode is guided into the underlying Ge layer. The presence of tapering in NWs further extends the absorption range while minimizing reflection. This ability to engineer and enhance e-SWIR absorption lays the groundwork to implement novel photonic devices exploiting all-group IV platforms.","PeriodicalId":8423,"journal":{"name":"arXiv: Applied Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74681301","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