Results 61 to 70 of about 2,825,028 (241)

Sub-wavelength grating for enhanced ring resonator biosensor.

Optics Express, 2016
While silicon photonic resonant cavities have been widely investigated for biosensing applications, enhancing their sensitivity and detection limit continues to be an area of active research.
J. Flueckiger, Shon A. Schmidt, V. Donzella, A. Sherwali, D. Ratner, L. Chrostowski, K. Cheung   +6 more
semanticscholar   +1 more source

Theoretical Analysis of Suspended Road Dust in Relation to Concrete Pavement Texture Characteristics

Atmosphere
Particulate matter (PM) originating from road dust is an increasing concern in urban air quality, particularly as non-exhaust emissions from tire–pavement interactions gain prominence.
Hojun Yoo, Gyumin Yeon, Intai Kim
doaj   +1 more source

High channel count and high precision channel spacing multi-wavelength laser array for future PICs [PDF]

, 2014
Multi-wavelength semiconductor laser arrays (MLAs) have wide applications in wavelength multiplexing division (WDM) networks. In spite of their tremendous potential, adoption of the MLA has been hampered by a number of issues, particularly wavelength ...
Chen, Xiangfei, Hou, Lianping, Li, Jingsi, Li, Lianyan, Li, Simin, Marsh, John H., Qiu, Bocang, Shi, Yuechen, Tang, Song, Zhang, Tingting, Zhang, Yunshan, Zheng, Jilin   +11 more
core   +2 more sources

Transcranial Laser Stimulation Research—A New Helmet and First Data from Near Infrared Spectroscopy

Medicines, 2018
This editorial adopts a future-oriented technology. It describes a new modern helmet for transcranial laser stimulation and a way to quantify effects of this possible therapeutical method using near-infrared spectroscopy.
Gerhard Litscher
doaj   +1 more source

Wavelength of Experimental LEDS: Hardness, Elastic Modulus, Degree of Conversion and Temperature Rise of a Microhybrid Composite [PDF]

Materials Research, 2015
The aim of this study was to evaluate the effect of different peak wavelengths (450nm, 468nm and 490nm) of experimental LEDs on hardness, elastic modulus, degree of conversion and temperature rise of a microhybrid resin composite – Venus® (Heraeus Kulzer)
Ana Paula Bonilauri Ferreira, Paulo César Soares Júnior, Evelise Machado Souza, Rodrigo Nunes Rached, Sérgio Henrique Pezzin, Sérgio Vieira   +5 more
doaj   +1 more source

Red-Shift (2-Hydroxyphenyl)-Benzothiazole Emission by Mimicking the Excited-State Intramolecular Proton Transfer Effect

Frontiers in Chemistry, 2021
Novel strategies to optimize the photophysical properties of organic fluorophores are of great significance to the design of imaging probes to interrogate biology.
Yong Ren, Lei Zhou, Lei Zhou, Xin Li
doaj   +1 more source

Picosecond Laser Ablation of Polyhydroxyalkanoates (PHAs): Comparative Study of Neat and Blended Material Response [PDF]

, 2019
Polyhydroxyalkanoates (PHAs) have emerged as a promising biodegradable and biocompatible material for scaffold manufacturing in the tissue engineering field and food packaging. Surface modification is usually required to improve cell biocompatibility and/
Basnett, P., Basnett, P., Ortiz, R, Ortiz, R, Quintana, I., Quintana, I., Roy, I., Roy, I.   +7 more
core   +2 more sources

Impact of optical wavelength on the reliability of photoplethysmography-based heart rate measurements outside of controlled laboratory environments

Current Issues in Sport Science
Introduction The effectiveness of heart rate (HR) measurements via photoplethysmography (PPG) depends on the wavelength of light used. Typical PPG sensors use green, red, or infrared light, each penetrating the skin to different depths (Ray et al ...
Manuel Meier, Christian Holz
doaj   +1 more source

Thin film wavelength converters for photonic integrated circuits

, 2016
Quasi-phase-matched (QPM) wavelength converters are highly desirable for emerging nonlinear optics applications in photonic integrated circuits, but available waveguide and quasi-phase-matching technologies have so far constrained their realization.
L. Chang, Yifei Li, N. Volet, Leiran Wang, J. Peters, J. Bowers   +5 more
semanticscholar   +1 more source

Determination of the Most Effective Wavelengths for Prediction of Fuji Apple Starch and Total Soluble Solids Properties

Applied Sciences, 2020
Proper physical properties and standard chemical properties are among the criteria that consumers use to select fruits. Recently, researchers attempted to develop non-destructive methods for measuring properties, among which the near-infrared (NIR ...
Razieh Pourdarbani, Sajad Sabzi, Sanaz Jarolmasjed, Thomas Panagopoulos   +3 more
doaj   +1 more source