Results 51 to 60 of about 1,460,974 (246)

Achieving High ON State Current through Ferroelectric Polarization‐Dependent Interfacial Resistance Switching in Undoped Orthorhombic HfO2 Films

Advanced Functional Materials, EarlyView.
Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand, Nuno Estrócio, Ji S. Kim, Babak Bakhit, Marian C. Istrate, Corneliu Ghica, Tiago Rebelo, Nives Strkalj, Abin Varghese, Bernardo Almeida, Luís S. Marques, Bipin Rajendran, Judith L. MacManus‐Driscoll, José P. B. Silva   +13 more
wiley   +1 more source

Mode structure of a semiconductor laser with feedback from two external filters [PDF]

, 2008
We study a semiconductor laser subject to filtered optical feedback from two separate filters. This work is motivated by an application where two fiber gratings are used to stabilize the output of a laser source.
Slowinski, P., Slowinski, P, Wieczorek, Sebastian, Krauskopf, B, Wieczorek, S.   +4 more
core  

One- and two-photon pumped organic semiconductor lasers [PDF]

, 2009
This thesis describes a number of studies on organic semiconductors focused around using them as gain media for lasers. The photophysical properties of organic semiconductors are studied using a wide range of experimental techniques, allowing the ...
Tsiminis, Georgios, Skabara, P., Samuel, I., Turnbull, G., Samuel, Ifor David William, Shaw, P., Perepichka, Igor F., Kanibolotsky, A.L., Dawson, M., Kanibolotsky, Alexander L., Perepichka, I., Paul E. Shaw, Graham A. Turnbull, Turnbull, Graham A., Samuel, Ifor D. W., Skabara, P.J., Wang, Yu, Ifor D. W. Samuel, Tsiminis, G., Kanibolotsky, A., Georgios Tsiminis, Alexander L. Kanibolotsky, Igor F. Perepichka, Shaw, Paul Edward, Martin D. Dawson, Wang, Yue, Dawson, M.D., Perepichka, I.F., Skabara, Peter J,, Shaw, Paul E., Skabara, Peter J., Peter J. Skabara, Wang, Y., Dawson, Martin D., Yue Wang   +34 more
core   +1 more source

Advances in Sustainable and Wearable Textile Based Soft Robotics

Advanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas, Marzia Dulal, Sophia K. Novoselov, Victoria K. Novoselov, Kostya S. Novoselov, Shaila Afroj, Nazmul Karim   +6 more
wiley   +1 more source

A new tapered semiconductor laser with integrated multimode interference coupler

Frontiers in Physics
A new tapered semiconductor laser with an integrated multimode interference coupler is presented in this paper. The seed source of the new laser is a multimode interference coupler semiconductor laser, which overcomes the limitations imposed by the ...
Jianxin Zhang, Jianxin Zhang, Jianxin Zhang, Haizhu Sun, Zaifa Du, Zaifa Du, Min Yang, Pingping Wang, Yingchao Zhang, Yingchao Zhang, Xinmin Fan, Xinmin Fan   +11 more
doaj   +1 more source

The features of modelling semiconductor lasers with a wide contact

EPJ Web of Conferences, 2017
The aspects of calculating the dynamics and statics of powerful semiconductor laser diodes radiation are investigated. It takes into account the main physical mechanisms influencing power, spectral composition, far and near field of laser radiation.
Rzhanov Alexey
doaj   +1 more source

Review of 1.55 μm Waveband Integrated External Cavity Tunable Diode Lasers

Photonics, 2023
The 1.55 μm waveband integrated external cavity tunable diode lasers have excellent merits such as their small volume, low cost, low power consumption, wide tuning range, narrow linewidth, large side mode suppression ratio, and high output power.
Linyu Zhang, Xuan Li, Wei Luo, Junce Shi, Kangxun Sun, Meiye Qiu, Zhaoxuan Zheng, Huiying Kong, Jinhui Zhou, Chi Zhang, Zaijin Li, Yi Qu, Zhongliang Qiao, Lin Li   +13 more
doaj   +1 more source

Optical Signature of Moiré Superlattices Formed by Twisted SrTiO3 Membranes

Advanced Functional Materials, EarlyView.
We discover optical signatures from bonded interfaces in twisted SrTiO3 moiré superlattices, including low‐frequency Raman vibrational modes and strong second‐harmonic generation, consistent with strong interlayer coupling inferred from cross‐sectional electron microscopy and ab initio calculations. ABSTRACT Moiré superlattices formed at the interfaces
T. A. M. Ragib Shahriar, Fumikazu Murakami, Xing He, Konnor Koons, Xinyan Li, Bumseop Kim, Shihan Qin, Varun Harbola, Jochen Mannhart, Yimo Han, Ruijuan Xu, Shengxi Huang, Andrew M. Rappe, Hanyu Zhu   +13 more
wiley   +1 more source

Featureless Broadband Chaos Through Cascaded Optically Injected Semiconductor Lasers

Photonics
Optical chaos generated by a semiconductor laser under cascaded optical injection is experimentally and numerically investigated. A semiconductor slave laser under continuous-wave optical injection from a master laser is employed as the chaotic laser ...
Mohammad AlMulla
doaj   +1 more source

Fusogenic RNA Nanomodules for Fusion‐Mediated and Multiplexed siRNA Delivery

Advanced Functional Materials, EarlyView.
A fusogenic lipid‐layered RNA nanomodules (L‐CRAMs) enable high‐capacity and long‐lasting siRNA delivery through membrane fusion. These nanomodules carry exceptionally large siRNA payloads, avoid conventional endosomal uptake, and release multiple functional siRNAs through Dicer‐mediated processing.
Sunghyun Moon, Iksoo Jang, Taehyeon Kim, Nayoung Yoon, Kyuha Yum, Jong Bum Lee   +5 more
wiley   +1 more source