Results 61 to 70 of about 897,436 (329)
Tunable metasurfaces towards versatile metalenses and metaholograms: a review
Advanced Photonics, 2022 . Metasurfaces have attracted great attention due to their ability to manipulate the phase, amplitude, and polarization of light in a compact form. Tunable metasurfaces have been investigated recently through the integration with mechanically moving ...
Jaekyung Kim +5 more
semanticscholar +1 more source
High-power broadband laser source tunable from 3.0 um to 4.4 um based on a femtosecond Yb:fiber oscillator [PDF]
, 2011 We describe a tunable broadband mid-infrared laser source based on difference-frequency mixing of a 100 MHz femtosecond Yb:fiber laser oscillator and a Raman-shifted soliton generated with the same laser. The resulting light is tunable over 3.0 um to 4.4
Adler +15 more
core +3 more sources
Adiabatic quantum simulations with driven superconducting qubits
, 2018 We propose a quantum simulator based on driven superconducting qubits where the interactions are generated parametrically by a polychromatic magnetic flux modulation of a tunable bus element.
Egger, Daniel J. +6 more
core +1 more source
Demonstration of a microelectromechanical tunable F-P cavity based on graphene-bonded fiber devices [PDF]
, 2019 Taking advantage of the high thermal conductivity of graphene, this paper demonstrates a microelectromechanical (MEM) tunable Fabry-Perot (F-P) cavity, based on a graphene-bonded fiber device (GFD) which acts as a microheater.
Balandin +42 more
core +1 more source
International Journal of Antennas and Propagation, 2011 Diversified deformations on reflection-style optical antennas caused by processing technique and complex outer-space environment in free-space laser communications are modeled by wavelet analysis.
Wanqing Xie +3 more
doaj +1 more source
Sensors, 2019 A photoacoustic spectroscopy (PAS) based carbon dioxide (CO2) sensor with a fixed wavelength quantum cascade laser (FW-QCL) was demonstrated. The emission wavelength of the FW-QCL at 4.42 μm in the mid-infrared spectral region matched a fundamental ...
Shunda Qiao +8 more
doaj +1 more source
Phase-only transmissive spatial light modulator based on tunable dielectric metasurface [PDF]
Science, 2019 Dynamic metasurfaces Nanostructured metasurfaces can function as many passive optical elements. Now, S.-Q. Li et al. demonstrate that metasurfaces can be combined with liquid crystals to provide active control over light beams.
Shiqiang Li +5 more
semanticscholar +1 more source
A High-Performance and Temperature-Insensitive Shape Sensor Based on DPP-BOTDA
IEEE Photonics Journal, 2018 Distributed optical fiber strain sensing significantly increases the number of sensing points compared with fiber Bragg grating sensor, which makes it an excellent candidate for shape sensing. Theoretical analysis indicates that the spatial resolution of
Dexin Ba +6 more
doaj +1 more source
Chemosensors, 2022 As a new form of energy, hydrogen (H2) has clean and green features, and the detection of H2 has been a hot topic in recent years. However, the lack of suitable laser sources and the weak optical absorption of H2 limit the research concerning its ...
Tiantian Liang +3 more
doaj +1 more source
Evidence of a gate-tunable Mott insulator in a trilayer graphene moiré superlattice [PDF]
Nature Physics, 2018 The Mott insulator is a central concept in strongly correlated physics and manifests when the repulsive Coulomb interaction between electrons dominates over their kinetic energy1,2.
Guorui Chen +11 more
semanticscholar +1 more source