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We demonstrate here a spatially non-blocking optical 4x4 router with a footprint of 0.07 mm 2 for use in future integrated photonic interconnection networks. The device is dynamically switched using thermo-optically tuned silicon microring resonators with a wavelength shift to power ratio of 0.25nm/mW. The design can route four optical inputs to four(More)
The differences in EEG theta waves between concentrative and non-concentrative Qigong states were studied by means of power spectrum analysis and EEG mapping. The adult subjects included 20 practitioners of concentrative Qigong, 30 practitioners of non-concentrative Qigong and 23 control subjects. The results showed frontal mid-line theta rhythm was related(More)
BACKGROUND Preclinical models show that an antiangiogenic regimen at low-dose daily (metronomic) dosing may be effective against chemotherapy-resistant tumors. We undertook a prospective, open-label, single-arm, multi-institutional phase II study to evaluate the efficacy of a "5-drug" oral regimen in children with recurrent or progressive cancer. (More)
The frequency resolution of an active waveguide ring resonator spectrometer is fundamentally limited by spontaneous emission noise produced by the gain medium. A closed-form expression for this resolution is derived, and the result is used to determine the minimum, rms, angular rotation rate, random walk error achievable by an active ring resonator(More)
Internal spatial modes and local properties controlling optical wave propagation have been measured in glass/silica buried waveguides. The period of the observed standing modes provides a direct measure of the local effective index. The measured effective index and transverse modal shape determines the values of all components of the wave vector. In(More)
An etch-free and cost-effective deposition and patterning method to fabricate mid-infrared chalcogenide glass waveguides for chemical sensing applications is introduced. As 2 S 3 raised strip optical waveguides are produced by casting a liquid solution of As 2 S 3 glass in capillary channel molds formed by soft lithography. Mid-IR transmission is(More)
The pain components of somatosensory evoked potentials (SEPs) of induced by median nerve stimulation were studied with the way of blocking bloodstream of arm in 12 normal adults. The SEPs following the painful stimuli (0.1 msec. square wave pulse) of the right wrist were recorded from the left parietal (C3') and frontal (F3) scalp with earlobe reference(More)
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