1,721,058 research outputs found
Stability Analysis of Neural Networks with Time-Varying Delays via a Novel Generalized Integral Inequality Based on Free Matrices
No full text1
Stability analysis of time-varying delay neural network system utilizing free-matrix-based double integral inequality
No full text1
CommonCode
No full textExperimentation of a wireless network protocol over the air is of significant interest. However it is rarely performed compared to the simulation because of the difficulties in coding and debugging as well as scalability and repeatability. CommonCode is a unique protocol validation platform reusing the simulation codes for the experiments. It helps fast, convenient and accurate validation of protocols
An Open Wireless Mesh Testbed Architecture with Data Collection and Software Distribution Platform
No full textThis work was supported by the Korea Science and Engineering Foundation
(KOSEF) grant funded by the Korea government (MOST)(R01-2006-000-10753-0).
This study has been supported in part by a grant (Next Generation PC
Project) from the Institute of Information Technology Assessment (IITA)
MOCVD-grown Ga2O3 thin films for polarization-sensitive infrared photonics
No full textThe phonon modes of materials contain critical information on the quality of the crystals. Phonon modes also offer a wide range of polarization-dependent resonances in infrared that can be tailored to applications that require large dielectric function contrast in different crystal directions. Here, we investigate the far-field characteristics of MOCVD-grown Ga2O3 thin films. With a combination of cross-polarization FTIR and AFM characterization techniques, we propose an easy and non-invasive route to distinguish kappa and beta phases of Ga2O3 and study the quality of these crystals. Using numerical methods and cross-polarization spectroscopy, the depolarization characteristics of beta-Ga2O3 are examined and depolarization strength values as high as 0.495 and 0.76 are measured, respectively, for 400 and 800 nm-thick beta-Ga2O3. The strong birefringence near optical phonon modes of an 800 nm beta-Ga2O3 on a sapphire substrate is used to obtain several polarization states for the reflected light in the second atmospheric window 8-14 mu m. We anticipate that our findings open a new path for material characterization and wave plate design for the mid-IR range and offer novel possibilities for the future of IR on-chip photonics, thanks to the compatibility of beta-Ga2O3 with standard nanofabrication technology
- …
