Results 231 to 240 of about 1,804,643 (357)

Waveguide Geometry–Driven Trade‐Offs in Resonant Cavity Sensor Performance

Advanced Optical Materials, EarlyView.
Waveguide geometry governs the interplay between sensitivity, intrinsic Q‐factor, and wavelength noise in silicon nitride resonant sensors. Contrary to intuition, higher sensitivity does not ensure superior performance. Low‐noise, high‐Q ridge resonators achieve the lowest detection limits, revealing that detection is ultimately constrained by noise ...
Mohammad Talebi Khoshmehr, Bakiye Imran Akca, Mateusz Słowikowski, Drecka Dagmara, Marcin Juchniewicz, Ryszard Piramidowicz, Muhammad Ali Butt   +6 more
wiley   +1 more source

Phase-stable, multi-µJ femtosecond pulses from a repetition-rate tunable Ti:Sa-oscillator-seeded Yb-fiber amplifier. [PDF]

Appl Phys B, 2017
Saule T, Holzberger S, De Vries O, Plötner M, Limpert J, Tünnermann A, Pupeza I.   +6 more
europepmc   +1 more source

From Rigid to Soft Robotic Approaches for Neuroendoscopy

Advanced Robotics Research, EarlyView.
Robotic assistance has had minimal impact on deep intraventricular surgeries, where small‐scale, precision, and reduced invasiveness can contribute to improved patient outcomes. Emerging technologies in rigid, soft, and hybrid robotics are reviewed to identify the most promising mechanisms for deep brain navigation in addition to an attempt to identify
Kieran Gilday, Irena Zubak, Andreas Raabe, Josie Hughes   +3 more
wiley   +1 more source

Few-mode erbium-doped fiber amplifier with photonic lantern for pump spatial mode control.

Optics Letters, 2016
G. Lopez-Galmiche, Z. S. Eznaveh, J. Antonio-Lopez, A. Benitez, J. R. Asomoza, J. J. Mondragón, C. Gonnet, P. Sillard, Guifang Li, A. Schülzgen, C. Okonkwo, R. A. Correa   +11 more
semanticscholar   +1 more source

Per-Span Microwave-Frequency Fiber Interferometry for Amplified Transmission Links Employing High-Loss Loopbacks. [PDF]

Sensors (Basel)
Karydis GA, Skontranis M, Simos C, Simos I, Nikas T, Mesaritakis C, Bogris A.   +6 more
europepmc   +1 more source

Information Transmission Strategies for Self‐Organized Robotic Aggregation

Advanced Robotics Research, EarlyView.
In this review, we discuss how information transmission influences the neighbor‐based self‐organized aggregation of swarm robots. We focus specifically on local interactions regarding information transfer and categorize previous studies based on the functions of the information exchanged.
Shu Leng, Zihan Li, Yifeng Shao, Jinhao Liu, Li Yu, Shuguang Li   +5 more
wiley   +1 more source

High power pulsed optical parametric oscillator at 3.5 micron pumped by a diode seeded Yb³⁺- doped fiber MOPA

We report a high power pulsed optical parametric oscillator (OPO) at 3.5µm using a MgO:PPLN as the gain medium pumped by 1062nm all-fiber MOPA. Output powers as high as 11W at an overall slope efficiency of 67% was achieved, with nearly 2.5W of power ...
Lin, Dejiao, Alam, S.U., Jiang, Peipei, Wu, Bo, Chen, Kangkang, Malinowski, Andrew, Richardson, David, Shen, Yonghang, Cai, Shuangshuang   +8 more
core  

Collision‐Resilient Winged Drones Enabled by Tensegrity Structures

Advanced Robotics Research, EarlyView.
Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui, Raphael Zufferey, William Stewart, Mohammad Askari, Simon Jeger, Dario Floreano   +5 more
wiley   +1 more source

Superefficient optical frequency division referenced to μHz Schawlow-Townes-linewidth quantum noise-limited lasers. [PDF]

Sci Adv
Hu J, Xiao Y, Yang H, Xue S, Dong W, Zhai K, Zhu S, Qiu K, Zhang S, Ge J, Zhu NH, Jiang X, Xu J, Wen H, Zhou H.   +14 more
europepmc   +1 more source

Multimodal Actuation and Environment Adaptive Strategies of Bio‐Inspired Micro/Nanorobots in Precision Medicine

Advanced Robotics Research, EarlyView.
An introduction for multidrive and environment‐adaptive micro/nanorobotics: design and fabrication strategies, intelligent actuation, and their applications. Various intelligent actuation approaches—magnetic, acoustic, optical, chemical, and biological—can be synergistically designed to enhance flexibility and adaptive behavior for precision medicine ...
Aiqing Ma, Han Gong, Jiacheng Ouyang, Liqi Chen, Tianfang Kang, Yiran He, Guojun Huang, Sidi Zheng, Ting Yin, Hong Pan, Lintao Cai   +10 more
wiley   +1 more source