Results 71 to 80 of about 5,107 (160)

Broadband dispersion-engineered Bragg grating mirrors for integrated side-coupled Fabry–Pérot resonators

open access: yesScientific Reports
We present the design and demonstration of silicon nitride side-coupled Fabry–Pérot resonators employing both uniform and apodised distributed Bragg reflectors, for broadband dispersion engineering.
Davide Monopoli   +8 more
doaj   +1 more source

Tunable, High Pulse Energy and Narrow Linewidth Gas‐Filled Fiber Laser Across Near‐ and Mid‐Infrared

open access: yesLaser &Photonics Reviews, EarlyView.
A cascaded gas‐filled anti‐resonant hollow‐core fiber architecture enables broadly tunable infrared Raman lasers spanning ∼1.4–4.6 µm while maintaining microjoule‐level pulse energies and gigahertz‐level linewidths. The approach combines a wavelength‐tunable pump laser with optimized Raman frequency conversion, providing a compact route to high ...
Yazhou Wang   +11 more
wiley   +1 more source

High-Temperature Sensor Based on Fabry-Perot Interferometer in Microfiber Tip

open access: yesSensors, 2018
A miniaturized tip Fabry-Perot interferometer (tip-FPI) is proposed for high-temperature sensing. It is simply fabricated for the first time by splicing a short length of microfiber (MF) to the cleaved end of a standard single mode fiber (SMF) with ...
Zhenshi Chen   +9 more
doaj   +1 more source

Photonic nanovoids for tailored optoelectronic response in silicon solar cells

open access: yesResponsive Materials, EarlyView.
Optoelectronic workflow followed by experimental validation, demonstrating state‐of‐the‐art efficiency gains. Abstract As crystalline silicon (c‐Si) solar cells become thinner to reduce cost and weight, the optical design principles that govern light trapping (LT) must evolve.
Ivan M. Santos   +12 more
wiley   +1 more source

Significance of Fabry-Perot Cavities for Space Gravitational Wave Antenna DECIGO

open access: yesGalaxies
DECIGO is a future Japanese project for the detection of gravitational waves in space. To conduct various scientific missions, including the verification of cosmic inflation through the detection of primordial gravitational waves as the main objective ...
Kenji Tsuji   +7 more
doaj   +1 more source

Fabry-Perot Cavity Optimization for Absolute Strain Sensing Using Finite Element Analysis. [PDF]

open access: yesSensors (Basel), 2023
Pereira JMB   +4 more
europepmc   +1 more source

Fiber Bragg Grating Force Sensors for Minimally Invasive Surgery: State of the Art, Challenges, and Opportunities

open access: yesSmartBot, EarlyView.
This article reviews the application of fiber Bragg grating (FBG) technology for precise force sensing in minimally invasive surgery. It outlines the fundamental working principles and algorithms used to interpret sensor data. The text surveys clinical applications across various medical fields, such as ophthalmology and vascular intervention (Table of
Shiyuan Dong   +9 more
wiley   +1 more source

Adaptive Metafilm With Scalable Phase‐Tunable Emissivity for Energy‐Efficient Thermal Management

open access: yesSmall, EarlyView.
ABSTRACT Efficient thermal management of enclosed systems through controlled manipulation of radiative cooling power represents a key functionality of adaptive composite metamaterials. Such materials enable precise regulation of heat emission under varying environmental conditions while maintaining scalability and durability.
James Laurence Ruello   +6 more
wiley   +1 more source

A Dual‐Frequency Sensitivity Model for Optical Fibre Ultrasonic Sensors in Power Transformer Partial Discharge Detection

open access: yesHigh Voltage, EarlyView.
ABSTRACT The detection of partial discharges (PD) on the power transformer tank demands higher sensitivity in ultrasonic detection. To target the detection frequency band for sensor optimisation and enhance sensitivity, this paper presents a dual‐frequency sensitivity model for optical fibre ultrasonic sensors.
Sihan Wang   +4 more
wiley   +1 more source

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