Results 51 to 60 of about 60,818 (294)

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Wavelength-Tunable Chirped Pulse Amplification System (1720 nm–1800 nm) Based on Thulium-Doped Fiber

Photonics
Chirped pulse amplification (CPA) has been a commonly used methodology to obtain powerful ultrashort laser pulses ever since its first demonstration. However, wavelength-tunable CPA systems are much less common.
Xinyang Liu, Regina Gumenyuk
doaj   +1 more source

Optical fibres, lasers, and amplifiers [PDF]

Endeavour, 1992
Initially, the only operation that could be performed in optical fibre communication was transmitting optical information from one point to another, necessitating complex auxiliary electronic circuitry. In recent years, however, a range of fibre components has been developed which promise to become as ubiquitous and indispensable as the transistor is ...
openaire   +3 more sources

HIV‐1 establishes immediate latency in T cells expressing the viral Nef protein

FEBS Open Bio, EarlyView.
Nef is a viral protein often omitted from HIV‐1 reporter viruses. Consequently, its role in viral latency is unclear. We developed three novel dual reporter HIV‐1 derivatives that express Nef and allow for detection of latent and productive infection. Using these reporters, we show that Nef does not affect the establishment of immediate viral latency ...
Cindy Lam, Ivan Sadowski
wiley   +1 more source

Self-injection-locked thin-film regenerative laser amplifier

iScience
Summary: Organic lasers based on distributed feedback (DFB) microcavities have been extensively investigated. However, the application of these lasers is limited by their low output power and large beam divergence.
Yue Liu, Wenwen Wu, Xinping Zhang
doaj   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

High-Power, Wavelength-Locked 878.6 nm In-Band Pumped, Acoustic-Optically Q-Switched Nd:YVO₄ MOPA Laser With TEM₀₀ Mode

IEEE Photonics Journal, 2016
In this paper, a wavelength-locked 878.6-nm pumped acoustic-optically Q-switched Nd:YVO4 laser is presented. A master oscillator power amplifier configuration with two-stage amplifiers is employed to scale the output power.
Qiang Liu, Mingming Nie, Fuyuan Lu, Mali Gong   +3 more
doaj   +1 more source

Electrospun amplified fiber optics [PDF]

, 2015
A lot of research is focused on all-optical signal processing, aiming to obtain effective alternatives to existing data transmission platforms. Amplification of light in fiber optics, such as in Erbium-doped fiber amplifiers, is especially important for ...
Amarasinghe D., Andrea Camposeo, Anthony R., Arrue J., Camposeo A., Camposeo A., Clark J., Currie M. J., Dal Negro L., Dario Pisignano, Desurvire E., Fasano V., Foster M. A., Giovanni Morello, Gu F. X., Gu F. X., Heliotis G., Hoang T. B., Huang Z., Ichikawa M., Jackson S. D., Jeong Y., Kobayashi H., Koomhongse S., Leevy W. M., Liu H., Maier G. V., Maria Moffa, McGehee M. D., Morello G., Morello G., Polishuk P., Rajesh M., Samuel I. D. W., Sun X., Svelto O., Tagaya A., Tagaya A., Tengattini A., Wang P., Wei T., Weissleder R., Xia R., Yu H. C. Y., Zhao P.   +44 more
core   +2 more sources

Multimodal Mechanical Testing of Additively Manufactured Ti6Al4V Lattice Structures: Compression, Bending, and Fatigue

Advanced Engineering Materials, EarlyView.
In this experimental study, the mechanical properties of additively manufactured Ti‐6Al‐4V lattice structures of different geometries are characterized using compression, four point bending and fatigue testing. While TPMS designs show superior fatigue resistance, SplitP and Honeycomb lattice structures combine high stiffness and strength. The resulting
Klaus Burkart, Jonas Schmidt, Anastasiya Toenjes, Johanna Eisenträger   +3 more
wiley   +1 more source

Passive alignment stability and auto-alignment of multipass amplifiers based on Fourier transforms

, 2019
The stability properties of Fourier-based multipass amplifier to misalignments (tilts) of its optical components has been investigated. For this purpose, a method to quantify the sensitivity to tilts based on the amplifier small signal gain has been ...
Antognini, Aldo, Kirch, Klaus, Knecht, Andreas, Marszalek, Miroslaw, Nez, Francois, Nuber, Jonas, Pohl, Randolf, Schuhmann, Karsten, Schulthess, Ivo, Sinkunaite, Laura, Zeyen, Manuel   +10 more
core   +1 more source