Results 61 to 70 of about 6,834 (253)

Electrically Coded Retinomorphic Spectrophotodetector

Advanced Materials, EarlyView.
Self‐powered retinomorphic pyro‐photodetector is demonstrated that avoids machine‐learning post‐processing and covers 365–940 nm. Electrostatic balancing of built‐in potential produces an electrical wavelength code, delivering <3 nm wavelength decoding accuracy with ∼46 µs response.
Mohit Kumar, Hyunmin Dang, Hyungtak Seo
wiley   +1 more source

Reversible Hydration Tuning of Polar Order and Large Nonlinear Optical Response in a 2D van der Waals Crystal, LiInP2S6

Advanced Materials, EarlyView.
Hydration‐induced symmetry breaking transforms layered LiInP2S6${\rm LiInP}_2{\rm S}_6$ from a nonpolar to a chiral‐polar phase, producing a giant enhancement of non‐resonant second‐harmonic generation. The reversible tuning of polar order through molecular intercalation establishes a strategy for dynamically controlling nonlinear optical ...
Jadupati Nag, Saugata Sarker, Michael J. Waters, Safdar Imam, Himirkanti Sarkar, Anthony Richardella, James M. Rondinelli, Mercouri G. Kanatzidis, Venkatraman Gopalan   +8 more
wiley   +1 more source

Charge‐Encoded Sidechains Enable Deterministic Ion Ingress and Memory Retention in Organic Electrochemical Synaptic Transistors

Advanced Materials, EarlyView.
Organic electrochemical synaptic transistors based on sidechain‐engineered conjugated polyelectrolytes reveal that cationic sidechains enable efficient volumetric ion penetration and dense backbone doping, leading to enhanced transconductance and long‐term synaptic retention.
Haim Kwon, Jihyeon You, Chaeyeon Park, Dong Gue Roe, Ji Hyun Jung, Jeong Ho Cho, Han Young Woo   +6 more
wiley   +1 more source

Scalable photonic-phonoinc integrated circuitry for reconfigurable signal processing

Nature Communications
The interaction between photons and phonons plays a crucial role in broad areas ranging from optical sources and modulators to quantum transduction and metrology.
Liang Zhang, Chaohan Cui, Yongzhou Xue, Paokang Chen, Linran Fan   +4 more
doaj   +1 more source

Unveiling α‐MoO3 as a High‐Index, Low‐Loss Anisotropic Material: Bridging the Gap From Mid‐Infrared to Ultraviolet Nanophotonics

Advanced Materials, EarlyView.
α‐MoO3 is established as a high‐index, low‐loss anisotropic platform bridging mid‐infrared polaritonics and ultraviolet‐visible nanophotonics. Spectroscopic ellipsometry and calculations reveal refractive indices exceeding 3.9, with the largest in‐plane birefringence among transparent layered crystals at 425–500 nm, enabling zero‐order UV waveplates ...
Adilet N. Toksumakov, Dmitriy V. Grudinin, Georgy A. Ermolaev, Alexey P. Tsapenko, Anton A. Minnekhanov, Konstantin V. Kravtsov, Nikolay V. Pak, Arslan B. Mazitov, Andrey A. Vyshnevyy, Aleksandr S. Slavich, Ivan A. Kruglov, Gleb I. Tselikov, Aleksey V. Arsenin, Kostya S. Novoselov, Valentyn S. Volkov   +14 more
wiley   +1 more source

The perspective of all-silicon photonics and systems

APL Photonics
Silicon photonics has emerged as a transformative solution to address the energy and bandwidth challenges of modern computing and communication systems.
Y. Yuan, Y. Peng, S. Cheung, X. Xiao, W. V. Sorin, Z. Huang, D. Liang, A. Kumar, R. Liu, Y. Hu, S. Hooten, S. Palermo, M. Fiorentino, R. G. Beausoleil   +13 more
doaj   +1 more source

Operation of an InAs quantum-dot embedded GaAs photonic crystal slab waveguide laser by using two-photon pumping for photonics integrated circuits

AIP Advances, 2016
The development of small sized laser operating above room temperature is important in the realization of optical integrated circuits. Recently, micro-lasers consisting of photonic crystals (PhCs) and whispering gallery mode cavities have been ...
H. Oda, A. Yamanaka, N. Ozaki, N. Ikeda, Y. Sugimoto   +4 more
doaj   +1 more source

Inverse Scattering Method Design of Regrowth-Free Single-Mode Semiconductor Lasers Using Pit Perturbations for Monolithic Integration

IEEE Photonics Journal, 2018
An inverse scattering method is used to design regrowth-free single-mode lasers, using etch depth insensitive pits as perturbations in the laser cavity. These pit perturbations are circular holes etched into the waveguide of each laser to a depth 0.8$\mu
Kevin Shortiss, Mohamad Dernaika, Ludovic Caro, Masoud Seifikar, Frank H. Peters   +4 more
doaj   +1 more source

Asymmetric Lamellar Templating of the Perovskite/C60 Interface for Scalable Inverted Perovskite Photovoltaics

Advanced Materials, EarlyView.
Asymmetric lamellar templating at the perovskite/C60 interface is achieved using a laterally polarized indole spacer. Surface anchoring and Ind–Ind assembly form a π‐rich lamellar interphase that supports uniform C60 contact formation, suppresses recombination, preserves electron extraction, and enables certified high‐efficiency cells and modules with ...
Taeyoon Ki, Jong‐Guk Ahn, Sangcho Kim, Sangjin Kim, Min‐Ho Lee, In‐Wook Hwang, Jinju Jeong, Soobin Shim, Jaeboong Ahn, Jun Hong Park, Seungjin Lee, Jung‐Yong Lee, Yousoo Kim, Ju‐Hyeon Kim, Hongkyu Kang, Sukwon Hong, Kwanghee Lee   +16 more
wiley   +1 more source

Present and future of micro-transfer printing for heterogeneous photonic integrated circuits

APL Photonics
We present the current state of the art in micro-transfer printing for heterogeneously integrated silicon photonic integrated circuits. The versatility of the technology is highlighted, as is the way ahead to make this technology a key enabler for next ...
Gunther Roelkens, Jing Zhang, Laurens Bogaert, Emadreza Soltanian, Maximilien Billet, Ali Uzun, Biwei Pan, Yang Liu, Evangelia Delli, Dongbo Wang, Valeria Bonito Oliva, Lam Thi Ngoc Tran, Xin Guo, He Li, Senbiao Qin, Konstantinos Akritidis, Ye Chen, Yu Xue, Margot Niels, Dennis Maes, Max Kiewiet, Tom Reep, Tom Vanackere, Tom Vandekerckhove, Isaac Luntadila Lufungula, Jasper De Witte, Luis Reis, Stijn Poelman, Ying Tan, Hong Deng, Wim Bogaerts, Geert Morthier, Dries Van Thourhout, Bart Kuyken   +33 more
doaj   +1 more source