Recent advances in nanotechnology have led to the development of nano-electromechanical systems (NEMS) such as nanomechanical resonators, which have recently received significant attention from the scientific community. This is not only due to their capability of label-free detection of bio/chemical molecules at single-molecule (or atomic) resolution for future applications such as the early di...

This paper presents the theory and measured results of a lownoise un-cooled infrared (IR) detector, which uses a combination of piezoelectric, pyroelectric, electrostrictive, and resonant effects to achieve high sensitivity. The sensor consists of a high-Q gallium nitride (GaN) micro-mechanical resonator coated with an IR absorber layer. The IR absorber converts the IR energy into heat. The gen...

we propose a new ring resonator side-coupled m-z interferometer all-optical switch throughthe pumped nonlinear directional coupler. by controlling pump power p to lead the coupler reflectivityr approaching to 1, the resonator finesse will be enhanced dramatically, and then the minimumswitching power in silica-based practice devices can be obtained. as a sample, we use a nonlinearcoupler made by...

Evanescent microwave principles of operation 1 are based on the papers described by Kumar and Smith [1] and Kumar [2]. They described that when a dielectric/semiconductor/biological material is placed in the vicinity of the evanescent waveguide (which is connected to a cavity resonator), the reflection coefficient of the resonator changes. Both the resonance frequency and the quality factor of ...

The HERCULES laser has recently reached record intensities, as high as 10 22 W/cm 2 [1]. Such ultrahigh intensities create exciting opportunities for experiments in the ultra-relativistic and radiation dominated [2] regime of lasermatter interactions. Laser contrast, defined as the ratio of the peak intensity of the pulse to the prepulse intensity, must be at least 11 orders of magnitude to res...