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Stefan Scharring and Jürgen Kästel
Ground-based high-power lasers are, in principle, able to de-orbit any kind of space debris object from the low Earth orbit (LEO) by remotely inducing laser-ablative momentum. However, the assessment of efficiency and operational safety depends on many f...
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Xin Ma, Lei Zheng, Zifu Li, Lingling Zhang, Shikun Cheng and Xuemei Wang
This study explored the nitrate reduction by Al-Fe alloy. The nitrate conversions of fresh, 30-day and 90-day alloys were 78.1%, 42.8% and 9.5%, respectively. Water activation promoted the reducing ability of the alloy (98% nitrate removal), which was hi...
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Huangjun Zeng, Wenze Xue, Robert T. Murray, Weidong Chen, Zhongben Pan, Li Wang, Chen Cui, Pavel Loiko, Xavier Mateos, Uwe Griebner and Valentin Petrov
We investigate in-band pumping of a Tm,Ho,Lu:CaGdAlO4 laser using a Raman-shifted Er-fiber laser (1678 nm), in the continuous-wave (CW) and mode-locked (ML) regimes. A maximum output power of 524 mW is obtained in the CW regime with a 5% output coupler a...
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Norimitsu Okuyama, Kazufumi Nomura, Tomokazu Sano, Keiji Kadota, Seiya Nitta, Tetsuo Era and Satoru Asai
Blowholes caused by vaporization of the galvanized layer are a problem with galvanized steel sheets, which use lap joint welding. The laser ultrasonic method is the possible solution to realize the desirable 100% inspection instead of the conventional sa...
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Haiping Zhang, Jessica J. Pilgram, Carmen G. Constantin, Lucas Rovige, Peter V. Heuer, Sofiya Ghazaryan, Marietta Kaloyan, Robert S. Dorst, Derek B. Schaeffer and Christoph Niemann
We present two-dimensional (2D) optical Thomson scattering measurements of electron density and temperature in laser-produced plasmas. The novel instrument directly measures ne(x,y)" role="presentation">????(??,??)ne(x,y)
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e
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and Te(x,y)" role...
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