Results 71 to 80 of about 14,753 (248)

Noise in Passively Mode-Locked Lasers [PDF]

, 1998
For the first time, phase fluctuations in the spectral intensity of the pulse train generated by passively mode-locked semiconductor lasers have been measured. The results reveal diffusion-like fluctuations of this phase.
Eliyahu, D., Yariv, A.
core   +1 more source

Reconfigurable, Temperature Resilient Phase‐Change Metasurfaces Fabricated via High Throughput Nanoimprinting Lithography

Advanced Science, EarlyView.
ABSTRACT The combination of metasurfaces with chalcogenide phase‐change materials is a highly promising route toward the development of multifunctional and reconfigurable nanophotonic devices. However, their transition into real‐world devices is hindered by several technological challenges. This includes, amongst others, the lack of large area photonic
Carlota de Ruiz de Galarreta, Yinghao Zhao, Jose Mendoza‐Carreño, José M. Caicedo, José Santiso, C. David Wright, M. Isabel Alonso, Jiafang Li, Agustin Mihi   +8 more
wiley   +1 more source

Extrinsic and Intrinsic Charge Transfer at Interfaces of Membrane‐Based Oxide Heterostructures

Advanced Electronic Materials, EarlyView.
Freestanding oxides have emerged as a new opportunity to tailor oxides outside of the typical epitaxial constraints. We present the fabrication of TiO2‐terminated SrTiO3 membranes via direct growth control. We demonstrate competing ionic and electronic charge transfer in LaAlO3/SrTiO3 bilayers using near ambient pressure XPS.
Kapil Nayak, Marcus A. Wohlgemuth, Anton Kaus, Lisa Heymann, Alexandros Sarantopoulos, Lee‐Kang Huang, Christoph Baeumer, Regina Dittmann, Felix Gunkel   +8 more
wiley   +1 more source

Excimer laser lamellar keratoplasty [PDF]

Australian and New Zealand Journal of Ophthalmology, 1995
Abstract Purpose: To evaluate a procedure using the excimer laser to perform lamellar keratoplasty to treat deep corneal scars in the central optical zone. To determine if excimer laser can safely prepare a smooth surface for the host bed and the donor button, assess the interface opacity and evaluate the effects of the ablation on the recipient's ...
D B, Cano, N A, Downie, I M, Young, N, Carroll, G R, Pollock, H R, Taylor   +5 more
openaire   +2 more sources

Alopecia Totalis Treated with 1064 nm Picosecond Nd:YAG Laser: A Case Report

Applied Sciences, 2019
Alopecia areata (AA) is an autoimmune disorder causing nonscarring hair loss. Alopecia totalis (AT), the severe form of AA, is usually refractory to many first-line treatments including topical and intralesional corticosteroids and topical immunotherapy.
Shiow-Jen Juang, Tsung-Hua Tsai, Shu-Hui Wang, Ching-Chi Chi   +3 more
doaj   +1 more source

Exploiting Temperature Effects for Robust Control and Reference Circuits Using Thin‐Film Contact‐Controlled Transistors

Advanced Electronic Materials, EarlyView.
Compact circuits based on contact‐controlled transistors are well‐suited to unsupervised thermal management, sensitive temperature measurement, or temperature‐stable current references. Demonstrated on flexible microcrystalline silicon and supported by simulation, the approach does not require supply voltage regulation, remains manufacturable across ...
Eva Bestelink, Jean‐Charles Fustec, Olivier de Sagazan, Rogier Fransen, George Bairaktatis, Emmanuel Jacques, Radu A. Sporea   +6 more
wiley   +1 more source

Identification of the principal elements governing the wettability characteristics of ordinary Portland cement following high power diode laser surface treatment [PDF]

, 2003
The elements governing modifications to the wettability characteristics of ordinary Portland cement (OPC) following high power diode laser (HPDL) surface treatment have been identified.
Agarwala, Agathopoulos, Andrew, Bahners, Bahners, Borodina, Bourell, Cassie, Chattoraj, Fowkes, Good, Gutowski, Heitz, Henari, J Lawrence, Laurens, Laurens, Lawrence, Lawrence, Lawrence, Lawrence, Lawrence, Lawrence, Lawrence, Lawrence, Lawrence, Lawrence, Lawrence, Lawrence, Lawrence, Lawrence, Lawrence, Lawrence, Li, Neumann, Nicolas, Olfert, Palasantzas, Song, Song, Song, Sugita, Taylor, Ueki, Watanabe, Watanabe, Wenzel, Yoshizawa, Zhou, Zhou, Zhou, Zisman   +51 more
core   +1 more source

Uncovering the Role of Intrinsic Magnetic Order in Oxygen Evolution Reaction Activity With Operando Spectroscopy

Advanced Energy Materials, EarlyView.
Operando magnetic spectroscopy provides insight into how intrinsic magnetic order modulates the oxygen evolution reaction on La0.67Sr${\rm La}_{0.67}{\rm Sr}$0.33MnO$_{0.33}{\rm MnO}$3$_3$ thin films. Temperature‐dependent operando FMR and ambient‐pressure XMCD suggest a correlation between activity and the emergence of ferromagnetic regions near and ...
Emma van der Minne, Silvia Mauri, Anatoliy A. Vereshchagin, Vadim Ratovskii, Ellen M. Kiens, Hemanita Sharma, Jan Behrends, Piero Torelli, Gertjan Koster, Christoph Baeumer   +9 more
wiley   +1 more source

Ablation debris control by means of closed thick film filtered water immersion [PDF]

, 2010
The performance of laser ablation generated debris control by means of open immersion techniques have been shown to be limited by flow surface ripple effects on the beam and the action of ablation plume pressure loss by splashing of the immersion fluid ...
Bickel W. S., Bowling R. A., C F Dowding, Dyer P. E., Dyer P. E., Hutcheson G. D., J Lawrence, Lifshitz E. M., Munson B. R.   +8 more
core   +1 more source

Simultaneous dual-element analyses of refractory metals in naturally occurring matrices using resonance ionization of sputtered atoms [PDF]

, 1995
The combination of secondary neutral mass spectrometry (SNMS) and resonance ionization spectroscopy (RIS) has been shown to be a powerful tool for the detection of low levels of elemental impurities in solids.
Burnett, D. S., Calaway, W. F., Gruen, D. M., Pellin, M. J., Wiens, R. C.   +4 more
core   +1 more source