Results 231 to 240 of about 815,097 (318)

Hyperfine spectroscopy of optical-cycling transitions in singly ionized thulium. [PDF]

Sci Rep
Müller P, Tretiakov A, Younes A, Halawani N, C Campbell W, Hamilton P.   +5 more
europepmc   +1 more source

Observation of Linear and Nonlinear Light Trapping on Topological Dislocations

Laser &Photonics Reviews, Volume 20, Issue 8, 17 April 2026.
Topological dislocations are global lattice defects found in various systems ranging from crystals to photonic lattices. This work reports the first observation at optical frequencies of linear modes with tunable localization bound to edge dislocations and their nonlinear counterparts ‐ dislocation solitons. These results reveal an intriguing interplay
S. K. Ivanov, A. V. Kireev, K. Sabour, N. S. Kostyuchenko, S. A. Zhuravitskii, N. N. Skryabin, I. V. Dyakonov, A. A. Kalinkin, V. O. Kompanets, S. P. Kulik, S. V. Chekalin, A. Ferrando, V. N. Zadkov, Y. V. Kartashov   +13 more
wiley   +1 more source

High-Q and compact Fabry-Perot microresonators on thin-film lithium niobate. [PDF]

Nanophotonics
Yang L, Li C, Xie J, Tang HX.
europepmc   +1 more source

Topological Photonic Devices and Circuits at Terahertz Frequencies

Laser &Photonics Reviews, Volume 20, Issue 7, 6 April 2026.
This review examines how 3D topological insulators and emerging topological photonic phases enable robust, low‐loss and defect‐immune terahertz devices. Fundamental properties, device implementations and topological transport mechanisms are surveyed, revealing new opportunities for reconfigurable, high‐performance THz components and scalable ...
Samane Kalhor, Srabani Kar, Ranjan Singh, Kaveh Delfanazari   +3 more
wiley   +1 more source

Integrated Brillouin photonics in thin-film lithium niobate. [PDF]

Sci Adv
Ye K, Feng H, Te Morsche R, Wei C, Klaver Y, Mishra A, Zheng Z, Keloth A, Tarık Işık A, Chen Z, Wang C, Marpaung D.   +11 more
europepmc   +1 more source

Low Power and Wide Gain‐Range Mixer Using Current‐Bleeding Variable‐Gain Amplification

Microwave and Optical Technology Letters, Volume 68, Issue 4, April 2026.
ABSTRACT This paper presents a mixer with low power and a wide gain‐range using a current‐bleeding variable‐gain amplifier (VGA) technique. The proposed 2.4‐GHz mixer controls the conversion gain by replacing a conventional current‐bleeding stage with the VGA while maintaining the low‐power function of current‐bleeding.
Gyeong‐Seok Lee, Phuoc B. T. Huynh, Soo‐Young Choi, Tae‐Yeoul Yun   +3 more
wiley   +1 more source

Towards fibre-like loss for photonic integration from violet to near-infrared. [PDF]

Nature
Chen HJ, Colburn K, Liu P, Yan H, Hou H, Ge J, Liu JY, Lehan P, Ji QX, Yuan Z, Bouwmeester D, Holmes C, Gates J, Blauvelt H, Vahala K.   +14 more
europepmc   +1 more source

Solvothermal Fabrication of Trimetallic Oxides NCs: Exploring Their Magnetic and Photocatalytic Characteristics

Nano Select, Volume 7, Issue 4, April 2026.
A trimetallic NiFe2O4/ZnO/Co3O4 nanocomposite is synthesized via a solvothermal route and thermally tuned by post‐annealing. Structural, optical, and magnetic properties evolve systematically with temperature, enabling efficient sunlight‐driven degradation of mixed organic dyes.
Muhammad Hassan Iqbal, Muhammad Zahid Ishaque, Yasir Zaman, Muhammad Ayyaz, Hafiza Nabiha khalil, Muhammad Shahzad   +5 more
wiley   +1 more source

Recent Advances in Multitone Microwave Frequency Measurement. [PDF]

Sensors (Basel)
Zobair MA, Boroomandisorkhabi B, Esmaeelpour M.   +2 more
europepmc   +1 more source

Unidirectional Far‐Field Radiation of Surface Waves by On‐Chip Achromatic Metasurfaces

Nanophotonics, Volume 15, Issue 7, 13 April 2026.
Converting surface waves to unidirectional far‐field beams is essential for on‐chip photonics, but traditional couplers often suffer from inefficiency and frequency dispersion. This work experimentally demonstrates the concept of on‐chip achromatic metasurfaces, which can efficiently decouple broadband surface waves into unidirectional far‐field beams.
Haodong Li, Shaojie Ma, Lei Zhou, Shulin Sun   +3 more
wiley   +1 more source