We have theoretically investigated the influence of antireflective sub-wavelength structures on a monolithic white light-emitting diode (LED). The simulation is based on the rigorous coupled wave analysis (RCWA) algorithm, and both cylinder and moth-eye structures have been studied in the work. Our simulation results show that a moth-eye structure enhances the light extraction efficiency over the entire visible light range with an extraction efficiency enhancement of up to 26 %. Also for the first time to our best knowledge, the influence of sub-wavelength structures on both the color rendering index (CRI) and the correlated color temperature (CCT) of the monolithic white LED have been demonstrated. The CRI of the monolithic white LED could be improved from 92.68 to around 94 by applying a cylinder structure, and the CCT could be modified in a very large range with appropriate design of the cylinder structure.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1364/OE.19.00A166 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Dementia Care Research and Psychosocial Factors.
Alzheimers Dement
December 2024
University of Pittsburgh Alzheimer's Disease Research Center (ADRC), Pittsburgh, PA, USA.
Background: Black and African American adult males have the worst overall health than any other race or gender in the United States. The rate of Alzheimer's Disease is twice as high for Black and African American adults. Yet, little is known about how Black and African American adult males perceive the relationship between the social determinants of health and Alzheimer's Disease.
View Article and Find Full Text PDFInequities in Access to Mental Health Services Among Asian American, Native Hawaiian, and Pacific Islander Medicaid Enrollees.
Psychiatr Serv
December 2024
Department of Health Law, Policy, and Management, Boston University School of Public Health, Boston (Nguyen); Department of Health Services, Policy, and Practice (Nguyen) and Department of Epidemiology (Choy), Brown University School of Public Health, Providence, Rhode Island; Medicare Payment Advisory Commission, Washington, D.C. (Oh); Department of Population Health, Section for Health Equity, New York University Grossman School of Medicine, New York City (Ðoàn); Asian American Research Center on Health, San Francisco (Chu); Department of Health Policy and Management, Fielding School of Public Health (Banawa), Center for Health Policy Research (Banawa), and Division of General Internal Medicine and Health Services Research, David Geffen School of Medicine (Oronce), University of California, Los Angeles, Los Angeles; Department of Medicine, VA Greater Los Angeles Healthcare System, Los Angeles (Oronce); Department of Chronic Disease Epidemiology, Yale School of Public Health, New Haven, Connecticut (Choy); Department of Public Health, Wayne State University, Detroit (Zhou).
Asian American (AA) and Native Hawaiian and Pacific Islander (NHPI) people are often aggregated into a monolithic group, but when they are disaggregated into ethnic groups (e.g., Chinese), inequities can be identified.
View Article and Find Full Text PDFCutting efficiency of different dental diamond rotary instruments for sectioning monolithic zirconia and lithium disilicate crowns.
BMC Oral Health
September 2024
Substitutive Dental Science Department, College of Dentistry, Taibah University, Al Madinah, Saudi Arabia.
Background: The aim of this study was to determine the cutting efficiency of different diamond rotary instrument types for sectioning monolithic zirconia and lithium disilicate anatomical crowns.
Materials And Methods: The study used 30 diamond rotary instruments divided into three groups: Zirconia cutting diamond bur (White Z), super coarse grit diamond bur (KBlack), and medium coarse grit diamond bur (KBlue); Two subgroups were assigned based on the crown materials including monolithic zirconia (5YSZ) and lithium disilicate (e.max) ceramics.
Effect of simulated intraoral adjustment on the color and translucency of gradient multilayered monolithic zirconia.
J Prosthet Dent
December 2024
Assistant Professor, Department of Fixed Prosthodontics, Mansoura University, Mansoura, Egypt. Electronic address:
Statement Of Problem: The use of multilayered monolithic zirconia ceramics is becoming popular because it simplifies the production of esthetic restorations. The effect of clinical adjustment on the optical properties of these ceramics, especially strength-gradient zirconia, remains unclear.
Purpose: The purpose of this in vitro study was to evaluate the color and translucency of gradient multilayered zirconia brands after grinding and polishing.
High rates of negative behavioral health outcomes among sexually diverse (SD) youth are consistently documented, but population-level trends obscure within-group differences. Social dynamics intersect in youths' lives in ways that cannot be accounted for by summing their independent effects. An intersectional perspective is essential to understanding the behavioral health outcomes of SD youth.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!