In this context, we demonstrate the optofluidic logic operations with interfacial piezophototronic effect to promote multiple operations of electronic analogues. We report an optofluidic Y-channeled logic device with tunable metal-semiconductor-metal interfaces through mechanically induced strain elements. The exhibited strategy in optofluidic systems implemented with piezophototronic concept enables direct-on chip working of OR and AND logic with switchable photocurrent under identical analyte. Implementation of smart, interactive optofluidic tools for human—machine-interfaced next-generation applications demands an active and adaptable circuit interfaced in electromechanical stimuli with the capability of direct electrical information encoded in logic units 11 , 12 , 13 , Prominent control of semiconductor-based photonic and electronic logic gates has activated the most effective way of utilizing the supremacy of electromechanical—optofluidic integrations
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Peder Skafte-Pedersen ,1 Pedro S. Find articles by Pedro S. This article has been cited by other articles in PMC. Taking finite Q factors and filling fractions into account, the detection limit declines. As an example we discuss the fundamental limits of silicon-based high-Q resonators, such as photonic crystal resonators, for sensing in a bio-liquid environment, such as a water buffer.
Keywords: refractometry, resonators, optofluidics, photonic crystals 1. Introduction Refractometry is one of the classical workhorses among a variety of optical techniques in analytical chemistry. In its basic principle, it allows the quantification of concentration changes by means of an associated refractive-index change leading to frequency shifts of optical resonances.
Optofluidics integration [ 1 — 3 ] holds promises for refractometric analysis of minute sample volumes by the aid of optical resonators integrated in microfluidic architectures. Integrated nanophotonic resonators are beginning to show promising potential for high sensitivity and detection of minute concentrations [ 4 — 8 ] and the sensing performance is under active consideration in the research community [ 9 — 11 ]. More recent photonic crystal resonator designs emphasize the optimization of the light-matter overlap [ 12 ], which serves to increase the sensitivity [ 11 ].
However, the detection limit is of equal importance in many applications [ 9 ]. How small a refractive-index change can a resonator-based sensor setup quantify reliably? In this paper we explore the material absorption limitations. This allows us to estimate the ultimate detection limit, provided that resonators with sufficiently high intrinsic Q0 value are available. According to our knowledge, the limitation of material absorption is a central, but overlooked issue that was only pointed out very recently in independent work on photonic crystal resonators by Tomljenovic-Hanic et al.
The remaining part of the manuscript is organized as follows. In Section 2. In Section 3. Finally, in Section 4.
Integrated optofluidics: A new river of light
A micro-cavity fluidic dye laser. Google Scholar 34 Kou, Q. Collinear dual-color laser emission from a microfluidic dye laser. Google Scholar 35 Gersborg-Hansen, M. A coupled cavity micro-fluidic dye ring laser. Google Scholar 36 Balslev, S.
Vusida Optical sensors based on active microcavities. With current research only in its infancy, many Chaotic mixer for microchannels. However, microflows exhibit characteristic behaviours chemistry A new river of light. By have been explored.