Design of Partially Etched GaP-OI Microresonators for Two-Color Kerr Soliton Generation at NIR and MIR

We present and theoretically investigate a dispersion engineered GaP-OI microresonator containing a partially-etched gap of 250 nm x 410 nm in a 600 nm x 2990 nm waveguide. This gap enables a 3.25 {\mu}m wide anomalous dispersion spectral span covering both the near-infrared and the mid-infrared spectra. This anomalous dispersion is manifested by two mechanisms, being the hybridization of the fundamental TE modes around 1550 nm and the geometric dispersion of the higher order TE mode around the 3100 nm wavelengths, respectively. Two Kerr soliton combs can be numerically generated with 101 GHz and 97 GHz teeth spacings at these spectral windows. The proposed structure demonstrates the design flexibility thanks to the partially etched gap and paves the way towards potential coherent multicolor frequency comb generation in the emerging GaP-OI platform

Possible Luttinger liquid behavior of edge transport in monolayer transition metal dichalcogenide crystals.

In atomically-thin two-dimensional (2D) semiconductors, the nonuniformity in current flow due to its edge states may alter and even dictate the charge transport properties of the entire device. However, the influence of the edge states on electrical transport in 2D materials has not been sufficiently explored to date. Here, we systematically quantify the edge state contribution to electrical transport in monolayer MoS2/WSe2 field-effect transistors, revealing that the charge transport at low temperature is dominated by the edge conduction with the nonlinear behavior. The metallic edge states are revealed by scanning probe microscopy, scanning Kelvin probe force microscopy and first-principle calculations. Further analyses demonstrate that the edge-state dominated nonlinear transport shows a universal power-law scaling relationship with both temperature and bias voltage, which can be well explained by the 1D Luttinger liquid theory. These findings demonstrate the Luttinger liquid behavior in 2D materials and offer important insights into designing 2D electronics

Evaluation Of Electrostatic Discharge (Esd) Characteristics For Bottom Contact Organic Thin Film Transistor

Electrostatic discharge (ESD) performance of the bottom-contact organic thin-film transistors (OTFT) is investigated experimentally for the first time using the transmission line pulsing technique. The failure currents and leakage currents of OTFTs having different channel lengths and finger structures are characterized. Physical insights and measured data are offered to explain the failure of these devices at relatively low ESD stress level. © 2013 IEEE

Compact model for organic thin-film transistor with Gaussian density of states

Developing a compact model for organic thin-film transistors (OTFTs) would be significant for designing organic circuits. Contrasting the traditional silicon transistors, OTFTs are theorized using hopping transport and a Gaussian density of states. In this work, we present a new compact model for OTFTs by introducing hopping transport theory, a Gaussian density of states, and a physical mobility model. Our compact model is completely based on surface potential and its simulations do not require any threshold voltage. Simulations based on this model agree well with experimental data

Perceptions of traditional Chinese medicine for chronic disease care and prevention: a cross-sectional study of Chinese hospital-based health care professionals

Abstract Background In China, demands for disease prevention and health care and the prevalence of chronic non-communicable diseases have increased. TCM and general hospitals are increasingly utilizing TCM strategies for chronic non-communicable disease care and prevention. This study aimed to investigate health care professionals’ (HCPs’) perceptions of TCM for prevention, their TCM knowledge, and their abilities to provide such services in TCM and general hospitals. Methods This cross-sectional study investigated Chinese medicine hospitals and Chinese medicine departments in general hospitals in five Chinese cities. A self-designed questionnaire used to study 400 HCPs focused on basic demographic data, the demand for and effects of TCM for prevention and treatment, and their perceptions of such service implementation. The data analysis included chi-squared tests and descriptive and multi-factor analyses. Results The 335 HCP respondents comprised 230 (68.7%) females and 105 (31.3%) males, 75.5% of whom overall had knowledge of TCM preventive and health care services. Respondents older than 40 years (28.6%) had greater knowledge of and satisfaction with TCM for preventive and health care services than younger respondents. Moreover, 97.7% of the older respondents were clearly willing to provide TCM preventive services for chronic diseases, 67.8% of whom indicated that their hospitals already provided TCM for prevention and treatment. According to the chi-squared test results, the TCM service characteristics in hospitals, hospital outlooks regarding TCM and TCM development in hospitals were the primary factors affecting the respondents’ perceptions of TCM for chronic disease care and prevention. The multivariate analysis showed high satisfaction as significantly associated with older providers and those with lengthier work experience, particularly among those who worked in hospitals that provided typical TCM services and had positive attitudes towards TCM. Conclusion The study HCPs had relatively satisfactory knowledge of and positive attitudes towards TCM for chronic disease care and prevention and would use it in practice. Their perceptions and satisfaction levels correlated closely with the successful application of TCM for preventive care and treatment in hospitals. While the use of TCM for prevention and treatment was well developed in some hospitals, further improvements are warranted

Correction to: Perceptions of traditional Chinese medicine for chronic disease care and prevention: a cross-sectional study of Chinese hospital-based health care professionals

Following publication of the original article [1], the author reported that the funding information was missing from the original article