Laura Wills Mirkarimi

Ultracompact biochemical sensor built with two-dimensional photonic crystal microcavity

By measuring the resonant wavelength of a two-dimensional photonic crystal microcavity, we can detect the change in refractive index of 0.002. Evaporative process of water in 5% glycerol is used to demonstrate time-resolved sensing capability

Deuterium-induced degradation of (Ba, Sr)TiO3 films

Electrical degradation of (Ba, Sr)TiO3 (BST) thin films was investigated by annealing Pt/BST/Pt structures in D2/N2 and D2O-containing furnace ambients. Deuterium depth profiles were correlated to the current–voltage characteristics of the BST thin films. The dependence of the D distribution and leakage current density on the D incorporation method indicates that mobile, donor-type deuterium defects dissolve in large concentrations within BST thin films, and that their effects on leakage properties depend on the nature of their charge compensation. A mechanism is proposed for the leakage current increase after D2/N2 anneals, and good quantitative agreement between the theoretical results and experimental data is demonstrated.

Next-generation parallel-optical data links

Parallel-optical data links are now available and designed into many next-generation telecom/datacom central-office switches and routers. A line of products from Agilent Technologies is based upon a new platform and components developed at Agilent Laboratories. These links cost less per channel than serial links and allow about six times higher I/O density. The current generation of twelve-channel modules operates at 2.5 GBd over distances up to 600 m on optimized multimode fiber. These improvements will enable the continued exponential growth rate of Internet capacity over the next couple of years. In order to progress further up this growth curve, next-generation parallel-optical data links are expected to operate at 10 GBd. A research and development project at Agilent Labs is focussing on next-generation parallel-optical data links. It is called Parallel Optics for SuperHighways or POSH. This name is intended to reflect the continuing role that parallel optics will play in the future network of data communications superhighways.

Toward, single molecule detection with photonic crystal microcavity biosensors

Time resolved biomolecular binding events were measured using photonic crystal microcavity resonators integrated with microfluidics. The optical field is confined to a volume of 33 times 10-18 liters, which enables monitoring of single binding events

Novel packaging of parallel-optical interconnects for high-end servers

A novel packaging concept is demonstrated where parallel-optical subassemblies are mounted on the same substrate as processor chips for processor-to-processor communication within a high-end server. A single-channel bit-error ratio <1.5/spl times/10/sup -15/ was measured at 8 Gbit/s.