Results 91 to 100 of about 123,025 (314)

Fine Fabrication and Optical Waveguide Characteristics of Hexagonal tris(8-hydroxyquinoline)aluminum(Ⅲ) (Alq₃) Crystal

Crystals, 2020
Herein, we reported on the precise growth and optical waveguide characteristics of hexagonal tris(8-hydroxyquinoline)aluminum(Ⅲ) (Alq3) micro-crystals (MCs).
Jungwoon Park, Seokho Kim, Jinho Choi, Sung Ho Yoo, Seongjae Oh, Do Hyoung Kim, Dong Hyuk Park   +6 more
doaj   +1 more source

Q-factor and waveguide-sphere separation effects in waveguide-coupled microsphere resonators

Quality-factors of waveguide coupled microsphere resonators of 30µm diameter are measured. A Teflon buffer layer is deposited on the waveguide to separate the microsphere from the waveguide and the effect of this separation on the measured quality-factor
Panitchob, Y., Murugan, G.S., Wilkinson, J.S., Zervas, M.N.   +3 more
core   +1 more source

Advances in Halide Perovskites for Photon Radiation Detectors

Advanced Materials Technologies, EarlyView.
This work highlights recent progress in perovskite‐based photon radiation detectors, covering organic–inorganic hybrid, inorganic, lead‐free double, and vacancy‐ordered halide perovskites. Their detection performance is compared, material‐specific advantages and challenges are examined, and provides insight into current limitations and future ...
Liangling Wang, Jieqi Wang, Xiaojun Cui, Carsten Ronning   +3 more
wiley   +1 more source

Numerical simulation of continuum generation in a multimode nonlinear waveguide

, 2007
Continuum generation in large multimode nonlinear waveguides offers the exciting prospect of a new generation of compact, integrated, and high-power broadband light sources. Recently a novel technique based on Scanning Near-field Optical Microscopy (SNOM)
Horak, P., P. Horak, T. Chaipiboonwong, Chaipiboonwong, T., Mills, John, W.S. Brocklesby, J. D. Mills, Brocklesby, W.S.   +7 more
core   +1 more source

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

Advanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane, Lyn I. Jones, Richard M. Martin, Helen Winter, Faezeh Arab Hassani   +4 more
wiley   +1 more source

Retiming of short pulses using quadratic cascading in a periodically poled lithium niobate waveguide

, 2011
We demonstrate an all-optical technique for the mitigation of timing jitter in short pulse transmission systems. The technique relies on pulse preshaping followed by optical switching in a periodically poled lithium niobate waveguide via cascaded second ...
David J. Richardson, Gallo, K., Liu, Sheng, Petropoulos, P., Richardson, D.J., Kwang Jo Lee, Richardson, David J., Liu, S., Sheng Liu, Francesca Parmigiani, Lee, Kwang Jo, Parmigiani, Francesca, Gallo, Katia,, Periklis Petropoulos, Katia Gallo, Petropoulos, Periklis, Parmigiani, F., Lee, K.J.   +17 more
core   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Integrated waveguide and nanostructured sensor platform for surface-enhanced Raman spectroscopy

, 2014
Limitations of current sensors include large dimensions, sometimes limited sensitivity and inherent single-parameter measurement capability. Surface-enhanced Raman spectroscopy can be utilized for environment and pharmaceutical applications with the ...
Pollard, M., Kalsi, S., Oo, Swe Zin, Pearce, S., Chen, R., Charlton, M.D.B   +5 more
core   +1 more source

Optically pumped planar waveguide lasers, part I: fundamentals and fabrication techniques [PDF]

, 2011
The tremendous interest in the field of waveguide lasers in the past two decades is largely attributed to the geometry of the gain medium, which provides the possibility to store optical energy on a very small dimension in the form of an optical mode ...
Grivas, Christos, Christos Grivas
core   +1 more source

Record Performance in Vertically Stacked, Solution‐Processed ZTO Schottky Diodes

Advanced Materials Technologies, EarlyView.
Schottky diodes based on solution processed sustainable zinc—tin–oxide thin films present an eco‐friendly and versatile alternative to conventional CMOS based technologies. Beyond state‐of‐the‐art performance for vertically stacked solution‐based oxide diodes was achieved, including rectification ratios exceeding nine orders of magnitude, and intrinsic
Carlos Silva, Asal Kiazadeh, Raquel Azevedo Martins, António Dias, Jorge Martins, Luís Mendes, João Vaz, Rodrigo Martins, Elvira Fortunato, Emanuel Carlos, Jonas Deuermeier   +10 more
wiley   +1 more source