Results 81 to 90 of about 2,859,854 (215)

Gisela Eckhardt and the Raman laser

, 2015
Gisela Eckhardt was one of the early pioneers in laser physics, discovering the principle behind the Raman laser in 1962. Valdas Pasiskevicius, Richard Mildren and David Burman tell the largely unknown story of her life - and the challenges she faced as ...
Pasiskevicius, Valdas,, Pasiskevicius, Valdas, Mildren, Richard, Burman, David   +3 more
core   +1 more source

Application of planar laser-induced fluorescence measurement techniques to study the heat transfer characteristics of parallel-plate heat exchangers in thermoacoustic devices [PDF]

, 2010
This paper describes the development of an experimental arrangement and the application of acetone-based planar laser-induced fluorescence (PLIF) measurement techniques to study the unsteady characteristics of heat transfer processes in the parallel ...
Artur J Jaworski, Mao, X, Jaworski, Arthur J., Shi, L, Shi, Lei, Jaworski, AJ, Xiaoan Mao, Lei Shi, Mao, Xiaoan   +8 more
core   +1 more source

Femtosecond pump probe spectroscopy for the study of energy transfer of light-harvesting complexes from extractions of spinach leaves

South African Journal of Science, 2009
Measurements of ultrafast transient processes, of temporal durations in the picosecond and femtosecond regime, are made possible by femtosecond pump probe transient absorption spectroscopy. Such an ultrafast pump probe transient absorption setup has been
S. Ombinda-Lemboumba, A. du du Plessis, R.W. Sparrow, P. Molukanele, L.R. Botha, E.G. Rohwer, C.M. Steenkamp, L. van Rensburg   +7 more
doaj  

Comprehensive Investigations on 1053 nm Random Distributed Feedback Fiber Laser

IEEE Photonics Journal, 2017
We design a 1053 nm Yb3+-doped random fiber laser (YRFL) based on the combination of Yb3+ -doped fiber (YDF) and single mode fiber (SMF), in which the YDF provides active gain, while SMF offers random distributed feedback.
Mengqiu Fan, Zhaoyu Zon, Xiaocheng Tian, Dangpeng Xu, Dandan Zhou, Rui Zhang, Na Zhu, Lianghua Xie, Hongxun Li, Jingqin Su, Qihua Zhu   +10 more
doaj   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

All-fiber passive mode-locked laser to generate ps pulses based in a symmetrical NOLM¹ [PDF]

, 2009
We experimentally investigate an all-fiber passively mode-locked laser generating ps pulses. The experimental setup is a figure eight fiber laser configuration, including a power-symmetric Nonlinear Optical Loop Mirror (NOLM) with highly twisted low ...
BALDEMAR IBARRA ESCAMILLA, MANUEL DURAN SANCHEZ, EVGENY KUZIN   +2 more
core  

25 kHz narrow spectral bandwidth of a wavelength tunable diode laser with a short waveguide-based external cavity [PDF]

, 2013
We report on the spectral properties of a diode laser with a tunable external cavity mirror, realized as an integrated optics waveguide circuit. Even though the external cavity is short compared to that of other narrow bandwidth external cavity lasers ...
Lee, Christopher James, Boller, Klaus J., Offerhaus, Herman L.; id_orcid, Song, H., Offerhaus, H.L., Oldenbeuving, R.M., Offerhaus, H. L., Oldenbeuving, R. M., Oldenbeuving, Ruud, Lee, C. J., Klein, E.J., Offerhaus, Herman L., Lee, C.J., Klein, E. J., Boller, K. J., Boller, K.J.   +15 more
core   +1 more source

A Knowledge‐Based Approach for Understanding and Managing Additive Manufacturing Data

Advanced Engineering Materials, EarlyView.
Additive manufacturing processes generate a large amount of data. Effectively managing, understanding, and retrieving information from this data remains a major challenge. Therefore, we propose an ontology‐based approach to integrate heterogeneous data, enable semantic queries, and support decision‐making.
Mina Abd Nikooie Pour, Prithwish Tarafder, Anton Wiberg, Huanyu Li, Johan Moverare, Patrick Lambrix   +5 more
wiley   +1 more source

Generation of long broadband pulses with a figure-eight fiber laser¹ [PDF]

, 2011
In this paper we performed the experimental and numerical study of a passively mode-locked fiber laser that generates packets of sub-picosecond pulses instead of individual pulses.
Baldemar Ibarra Escamilla, EVGENY KUZIN
core  

New opportunities for creating quantum states of light and matter with intense laser fields

Nanophotonics
Nonlinear dynamics provide an indispensable resource for creating quantum states of light, as well as other bosonic systems. Seminal work using second- and third-order nonlinear optical crystals, cavity quantum electrodynamics, and superconducting ...
Rivera Nicholas
doaj   +1 more source