DNA has a well-defined structural transition--the denaturation of its double-stranded form into two single strands--that strongly affects its thermal transport properties. We show that, according to a widely implemented model for DNA denaturation, one can engineer DNA 'heattronic' devices that have a rapidly increasing thermal conductance over a narrow temperature range across the denaturation ...

Precision measurement on momentum transfer between light and fluid interface has many implications including resolving the intriguing nature of photons momentum in a medium. For example, the existence of Abraham pressure of light under specific experimental configuration and the predictions of Chau-Amperian formalism of optical momentum for TE and TM polarizations remain untested. Here, we quan...

We report a top-down process for the fabrication of single-crystalline silicon nanowire circuits and devices. Local oxidation nanolithography is applied to define very narrow oxide masks on top of a silicon-on-insulator substrate. In a plasma etching, the nano-oxide mask generates a nanowire with a rectangular section. The nanowire width coincides with the lateral size of the mask. In this way,...

Intense Raman signals were observed of nano gram quantities of three amino acids (histidine, valine, glycine) using visible laser excitation (488nm) at relatively low laser power (5mW) and short acquisition time (2min). Considerable variations in the Raman signal were observed when changing the pH of the amino acid solution. Scanning electron microscopy reveals considerable differences in the c...

PURPOSE Rapid development of nanotechnology has recently brought significant attention to the extraordinary biological features of nanomaterials. The objective of the present investigation was to evaluate morphological characteristics of the assembles of gold and platinum nanoparticles (nano-Au and nano-Pt respectively), with Salmonella Enteritidis (Gram-negative) and Listeria monocytogenes (Gr...

Developing a quantum photonics network requires a source of very-high-fidelity single photons. An outstanding challenge is to produce a transform-limited single-photon emitter to guarantee that single photons emitted far apart in the time domain are truly indistinguishable. This is particularly difficult in the solid-state as the complex environment is the source of noise over a wide bandwidth....

up an entire field of interdisciplinary research! Although foundational research into nano-scaled semiconductors was already underway by 1973 when Leo Esaki won the Nobel Prize in Physics for his work on semiconductor quantum devices, quantum dots were not recognized for their biological applications until the pioneering papers of the Alivisatos lab and the Nie lab in 1998 [1]. In these papers,...

In digital CMOS design, power consumption has been a major concern for the past several years. Advanced IC fabrication technology allows the use of nano-scaled devices; so the power dissipation becomes the major problem. Flip-flops are widely used in many sequential logic circuits such as registers, memory elements, counters, etc. These circuits are widely used in the implementation of VLSI chi...

Laser plasma interaction with micro-engineered targets at relativistic intensities has been greatly promoted by recent progress in the high contrast lasers and the manufacture of advanced micro- and nano-structures. This opens new possibilities for the physics of laser-matter interaction. Here we propose a novel approach that leverages the advantages of high-pressure CO2 laser, laser-waveguide ...