Results 91 to 100 of about 6,540 (173)

Ultrasonic Lamb Wave Detection Based on a Tunable, Narrow-Linewidth, and Frequency-Locked Fiber Laser

IEEE Photonics Journal, 2017
Developments of advanced ultrasonic sensors have made significant impact in structural health monitoring as well as in other various fields including electronics, biomedicine, and geophysics. We describe a cost-effective, highly stabilized, and sensitive
Jingjing Guo, Changxi Yang
doaj   +1 more source

An Open‐Source Pipeline for Calcium Imaging and All‐Optical Physiology in Human Stem Cell‐Derived Neurons

Advanced Science, Volume 13, Issue 26, 8 May 2026.
This work introduces an open‐source all‐optical platform for functional phenotyping of human stem cell‐derived neurons. The system integrates optogenetics, calcium imaging, automated acquisition, and analysis to resolve single‐cell and network activity, enabling longitudinal measurements, disease modeling, and pharmacological screening in preclinical ...
Wardiya Afshar‐Saber, Federico M. Gasparoli, Ziqin Yang, Nicole A. Teaney, Rachel Hobson, Lahin Lalani, Gayathri Srinivasan, Dosh Whye, Ranit Karmakar, Elizabeth D. Buttermore, Kellen D. Winden, Cidi Chen, Mustafa Sahin   +12 more
wiley   +1 more source

Experimental Demonstration of a Multicorrugation-Pitch-Modulated (MCPM) DFB Semiconductor Laser Based on Reconstruction-Equivalent-Chirp Technology

IEEE Photonics Journal, 2015
A multicorrugation-pitch-modulated (MCPM) distributed-feedback semiconductor laser is experimentally demonstrated for the first time to achieve stable single longitudinal mode (SLM) performance.
Jilin Zheng, Yunshan Zhang, Yuechun Shi, Weichun Li, Bocang Qiu, Jun Lu, Tingting Zhang, Xiangfei Chen   +7 more
doaj   +1 more source

An all-solid-state laser source at 671 nm for cold atom experiments with lithium

, 2011
We present an all solid-state narrow line-width laser source emitting $670\,\mathrm{mW}$ output power at $671\,\mathrm{nm}$ delivered in a diffraction-limited beam.
A. Agnesi, A. Agnesi, A. Arie, A. Miffre, A. Zukauskas, A.-Y. Yao, A.-Y. Yao, A.E. Siegman, A.W. Tucker, B. Boulanger, C. Canalias, C. Canalias, C. Chin, C. Salomon, D.B. Leviton, E. Mimoun, E. Mimoun, F. Biraben, F. Chevy, F. Gerbier, F. Lenhardt, F. Song, F. Torabi-Goudarzi, F.J. Kontur, G. Trénec, G. Trénec, G.D. Boyd, H. Ogilvy, I.E. Olivares, J. Vigué, J.T.F. Johnston, K. Fradkin, L. Fornasiero, L. McDonagh, L. Zhang, L.E. Myers, M. Okida, M. Peltz, P. Laporta, Q. Zheng, Q. Zheng, R. Boyd, R. Sarrouf, R. Sarrouf, R. Smith, S. Emanueli, S. Nascimbène, S.A. Payne, U. Eismann, V.A. Maslov, W. Leeb, W.I. McAlexander, W.W. Rigrod, Y.-F. Chen, Y.-F. Lü, Y.F. Chen, Y.F. Chen, Y.F. Chen   +57 more
core   +3 more sources

Saponite Bearing Material Excavated During the Formation of a Recent 25‐m‐Diameter Impact Crater in Southeastern Arabia Terra on Mars

Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Mars Reconnaissance Orbiter's Compact Reconnaissance Imaging Spectrometer for Mars (CRISM), Context Imager (CTX), and High Resolution Imaging Science Experiment observations were analyzed for a 25‐m‐wide impact crater and associated ejecta deposits located in the dust‐covered Arabia Terra region.
R. E. Arvidson, J. G. Catalano, J. R. Christian, A. A. Fraeman, M. N. Hughes, A. L. Knight, W. B. McKinnon, R. V. Morris, S. L. Murchie, J. A. O’Sullivan, D. V. Politte, F. Seelos, M. J. Wolff, F. Zhou   +13 more
wiley   +1 more source

Tunable Narrow Linewidth Erbium-Doped Fiber Ring Laser Based on Saturable Absorber and Self-Injection Feedback

IEEE Photonics Journal
We demonstrate a tunable single-longitudinal-mode (SLM) narrow linewidth erbium-doped fiber (EDF) ring laser (EDFRL) in a cost-effective way. The laser incorporates an unpumped-EDF-based saturable absorber (SA) and a self-injection feedback loop for mode
Fujun Xu, Xiaxiao Wang, Xiaobin Xu, Ningfang Song   +3 more
doaj   +1 more source

Holographic enhanced remote sensing system [PDF]

The Holographic Enhanced Remote Sensing System (HERSS) consists of three primary subsystems: (1) an Image Acquisition System (IAS); (2) a Digital Image Processing System (DIPS); and (3) a Holographic Generation System (HGS) which multiply exposes a ...
Gaynor, Edwin S., Huff, Lloyd, Iavecchia, Helene P., Rhodes, William T., Rothenheber, Edward H.   +4 more
core   +1 more source

Experimental Demonstration of the Distributed Feedback Semiconductor Laser With S-Bent Waveguide and Sampled Grating

IEEE Photonics Journal, 2017
A distributed feedback (DFB) semiconductor laser based on s-bent waveguide and sampled grating is theoretically studied and experimentally demonstrated.
Yunshan Zhang, Yuechun Shi, Lianyan Li, Zhengpeng Zou, Jun Lu, Yinchao Du, Wenxuan Wang, Yating Zhou, Xin Chen, Jilin Zheng, Xiangfei Chen   +10 more
doaj   +1 more source

Terahertz dynamic aperture imaging at stand-off distances using a Compressed Sensing protocol

, 2019
In this text, results of a 0.35 terahertz (THz) dynamic aperture imaging approach are presented. The experiments use an optical modulation approach and a single pixel detector at a stand-off imaging distance of approx 1 meter.
Augustin, Sven, Frohmann, Sven, Huebers, Heinz-Wilhelm, Jung, Peter   +3 more
core   +1 more source

Study on a DFB Laser Diode Based on Sampled Grating Technique for Suppression of the Zeroth Order Resonance

IEEE Photonics Journal, 2017
A distributed feedback (DFB) semiconductor laser based on sampled grating with multiple sections, i.e., a straight, a bent, and a tilted waveguide, is proposed to suppress the $0{\rm{th}}$ -order resonance.
Lianyan Li, Yuechun Shi, Yunshan Zhang, Hui Zou, Jianping Shen, Xiangfei Chen   +5 more
doaj   +1 more source