We report the label-free detection of single particles using photonic crystal nanobeam cavities fabricated in silicon-on-insulator platform, and embedded inside microfluidic channels fabricated in poly-dimethylsiloxane (PDMS). Our system operates in the telecommunication wavelength band, thus leveraging the widely available, robust and tunable telecom laser sources. Using this approach, we demo...

Nanoscale structural information of amorphous structures has become obtainable by using nanobeam electron diffraction in combination with high resolution imaging. In addition, accurate radial distribution function analysis using energy filter has also become available to know averaged amorphous structures. In this paper, we introduce some applications of these techniques, especially to several ...

One dimensional nanobeam photonic crystal cavities fabricated in silicon dioxide are considered in both simulation and experiment. Quality factors of over 104 are found via simulation, while quality factors of over 5 103 are found in experiment, for cavities with mode volumes of 2.0 /n 3 and in the visible wavelength range 600–716 nm. The dependences of the cavity quality factor and mode volume...

Optical nano-cavities are ideal platforms for label-free sensing. In this work, we demonstrated sensing of glucose concentrations at 10mg/dL with photonic crystal nanobeam sensor. The sensor exhibits high sensitivity and linearity covering the whole range of clinically relevant levels. Current device was fabricated in silicon-on-insulator platform and operated at telecom wavelength, and thus fu...

Abstract In this paper, nonlinear dynamic snap-through buckling and vibration behavior of the thermally post-buckled functionally graded (FG) porous nanobeams subjected to static sudden mechanical loads are investigated utilizing nonlocal elasticity theory. The physical properties nanobeam considered be functions temperature based on Touloukian model. addition, describe FG materials, two differ...

generally, fatigue failure in an element happens at the notch on a surface where the stress level rises because of the stress concentration effect. the present paper investigates the effect of a notch on the fatigue life of the hsla100 (­high strength low alloy) steel which is widely applicable in the marine industry. tensile test was conducted on specimens and mechanical properties were obtain...

Wavelength-scale, high Q-factor photonic crystal cavities [1, 2] have emerged as a platform of choice for on-chip manipulation of optical signals, with applications ranging from low-power optical signal processing [3] and cavity quantum electrodynamics [4, 5] to biochemical sensing. Many of these applications, however, are limited by the fabrication tolerances and the inability to precisely con...

M. Pernpeintner, T. Faust, F. Hocke, J. P. Kotthaus, E. M. Weig, H. Huebl, and R. Gross Walther-Meißner-Institut, Bayerische Akademie der Wissenschaften, D-85748 Garching, Germany Nanosystems Initiative Munich, Schellingstraße 4, D-80799 M€ unchen, Germany Physik-Department, Technische Universit€ at M€ unchen, D-85748 Garching, Germany Center for NanoScience (CeNS) and Fakult€ at f€ ur Physik, ...

We investigate the design, fabrication and experimental characterization of high Quality factor photonic crystal nanobeam cavities in silicon. Using a five-hole tapered 1D photonic crystal mirror and precise control of the cavity length, we designed cavities with theoretical Quality factors as high as 1.4 × 10. By detecting the cross-polarized resonantly scattered light from a normally incident...