Anuj Dhawan

Learn More
This paper describes the design and fabrication of fiber-optic nanoprobes developed for optical detection in single living cells. It is critical to fabricate probes with well-controlled nanoapertures for optimized spatial resolution and optical transmission. The detection sensitivity of fiber-optic nanoprobe depends mainly on the extremely small excitation(More)
In this paper we propose a set of novel tunable optical power splitters based on active microring resonators. They work by operating ring resonators in the transient zone between full resonance and off-resonance states for a specific wavelength. We can achieve different split ratios by either varying the bias voltage, or by selectively enabling a given(More)
—High static power dissipation is one of the largest hurdles in the widespread adoption of on-chip optical networks. There are numerous proposals in literature for the reduction of static power by predicting the activity in future time intervals, and then powering off the laser, and also by sharing optical bandwidth. We propose a novel scheme called ColdBus(More)
We present a novel surface plasmon resonance (SPR) configuration based on narrow groove (sub-15 nm) plasmonic nano-gratings such that normally incident radiation can be coupled into surface plasmons without the use of prism-coupling based total internal reflection, as in the classical Kretschmann configuration. This eliminates the angular dependence(More)
  • 1