Results 61 to 70 of about 714 (254)

Numerical Analysis of an Yb3+:Er3+:Tm3+:Ho3+ Wideband Optical Fiber Amplifier [PDF]

EPJ Web of Conferences
In this work, we numerically investigate the gain properties of an Yb3+:Er3+:Tm3+:Ho3+ co-doped optical fiber amplifier. The numerical simulations show that a gain higher than 15 dB in a wavelength range of 300 nm can be achieved. The erbium amplifies in
Ballarini Riccardo, Loconsole Antonella Maria, Kochanowicz Marcin, Dorosz Dominik, Prudenzano Francesco, Taccheo Stefano   +5 more
doaj   +1 more source

Conformable Microelectrode Arrays Integrated with a Scoop‐Shaped Slide‐Well for Dynamic Electrophysiological Profiling of Patient‐Derived Cardiac Organoids

Advanced Science, Volume 13, Issue 31, 4 June 2026.
A flexible, ultrathin multi‐channel microelectrode array (MEA) conformally integrated onto a curved slide‐well enables stable electrical interfacing with 3D cardiac organoids. The geometry‐guided self‐alignment allows simultaneous recording of extracellular field potentials and contractile motion from irregular, beating tissues.
Ye Seul Kim, Jeonghwa Jeong, Gyeonghwa Heo, Young Woo Kwon, Jeongha Lee, Yoon Ji Jeong, Gyu Tae Park, Seongdo Jeong, Ki Won Hwang, Murim Choi, Jinhong Shin, Suck Won Hong, Jae Ho Kim   +12 more
wiley   +1 more source

High Energy Ultrafast Laser at 2 μm Using Dispersion Engineered Thulium-Doped Fiber

IEEE Photonics Journal, 2019
We report on demonstration of high energy pulse laser at 2 μm by employing a normal dispersion fiber attained by a waveguide dispersion engineering. The normal dispersion fiber has a W-type refractive index profile, with a Thulium(Tm)-doped
Yuhao Chen, Shaoxiang Chen, Raghuraman Sidharthan, Chen Jian Cheng, Kun Liu, Shreesha Rao, Ole Bang, Qijie Wang, Ding Yuan Tang, Seongwoo Yoo   +9 more
doaj   +1 more source

High power tandem-pumped thulium-doped fiber laser

Optics Express, 2015
We propose a cascaded tandem pumping technique and show its high power and high efficient operation in the 2-μm wavelength region, opening up a new way to scale the output power of the 2-μm fiber laser to new levels (e.g. 10 kW). Using a 1942 nm Tm(3+) fiber laser as the pump source with the co- (counter-) propagating configuration, the 2020 nm Tm(3 ...
Yao, Wang, Jianlong, Yang, Chongyuan, Huang, Yongfeng, Luo, Shiwei, Wang, Yulong, Tang, Jianqiu, Xu   +6 more
openaire   +2 more sources

Lipoic Acid‐Intervened Decellularized Stem Cell Spheroid‐Based Injectable Granular Gel for Diabetic Tissue Regeneration

Advanced Science, EarlyView.
ABSTRACT Advancements in tissue engineering have revolutionized therapeutic paradigms for diabetic tissue defects; however, the lack of applicable scaffold containing various bioactive substance aggregates remained a critical bottleneck hindering satisfactory repair effect.
Tao Wang, Haowei Fang, Lili Qi, Song Myoungseop, Aawrish Khan, Lunli Gong, Guangdong Zhou, Kunxi Zhang, Haiyan Cui   +8 more
wiley   +1 more source

Wideband Spectrum-Sliced ASE Source Operating at 1900-nm Region Based on a Double-Clad Ytterbium-Sensitized Thulium-Doped Fiber

IEEE Photonics Journal, 2012
A wideband spectrum-sliced amplified spontaneous emission (ASE) source operating in 1900-nm region is demonstrated using a newly developed double-clad ytterbium-sensitized thulium-doped fiber (YTF) and a Sagnac loop mirror.
A. Halder, M. C. Paul, N. S. Shahabuddin, S. W. Harun, N. Saidin, S. S. A. Damanhuri, H. Ahmad, S. Das, M. Pal, S. K. Bhadra   +9 more
doaj   +1 more source

Mechanically Robust Biodegradable Stents With Theragenerative Vascular Responses via Combined 3D Printing and Janus Nanoengineering

Advanced Science, EarlyView.
This work introduces a theragenerative 3D‐printed biodegradable stent with Janus nanoarchitecture for spatially controlled vascular healing. A luminal tantalum ion–implanted surface accelerates endothelialization and hemocompatibility, while an abluminal sirolimus/poly‐L‐lactic acid–tantalum layer provides sustained drug release and suppresses smooth ...
Jong Hwa Seo, Dong‐Sung Won, Hyun Lee, Seojoon Bang, Hyeong Seok Kang, Ju Yeong Gwon, Chan Ho Moon, Ji Won Kim, Yubeen Park, Minho Kang, Dong Yun Lee, Donghyun Lim, Kisuk Yang, Gi Doo Cha, Soo‐Hong Lee, Tae‐Sik Jang, Seokbeom Kim, Jun‐Kyu Park, Jung‐Hoon Park, Hyun‐Do Jung   +19 more
wiley   +1 more source

Thulium Holmium co-doped tunable fiber laser [PDF]

EPJ Web of Conferences
We report a Tm-Ho co-doped fiber laser with continuous tunability between 1965-2120 nm thanks to a rotating diffraction grating in the laser cavity. It delivers an OSNR of over 60 dB at the central wavelength 2060 nm.
Tofaili Hussein, Grande Adrian, Jubera Veronique, Cormier Eric   +3 more
doaj   +1 more source

Thulium doped fiber based lasers and amplifiers [PDF]

, 2019
Doctor of ...
openaire   +3 more sources

Seedless One‐Pot Synthesis of Colloidal InAs Quantum Dots Enabling a High‐Accuracy Photoplethysmography Oximeter

Advanced Science, EarlyView.
A real‐time, non‐contact photoplethysmography (PPG) system based on InAs colloidal quantum dots (CQDs) synthesized via a seedless injection synthesis is demonstrated. The measured oxygen saturation shows considerable agreement with commercial PPG devices.
Beom Kwan Kim, Seungin Jee, Yongnam Ahn, In‐Suh Lee, Dongeon Kim, Seongchong Park, Yujin Jung, In‐Ho Bae, Se‐Woong Baek   +8 more
wiley   +1 more source