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Zujun Xu, Zhiyu Jin and Donna Strickland
It has been observed that when the multi-frequency Raman scattering process is pumped by two frequency chirped pulses in the transient regime, the anti-Stokes orders are spectrally broadened on the lower-frequency side, causing each of the orders to have...
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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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Andrey K. Sarychev, Grégory Barbillon and Andrey Ivanov
Generic, analytical equations are suggested for the localized plasmon excited in a narrow gap formed between a metal/dielectric cylinder and a metal surface. The local distribution of the electric field was found by employing the quasi-static approximati...
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Marietta Kaloyan, Sofiya Ghazaryan, Shreekrishna P. Tripathi, Walter Gekelman, Mychal J. Valle, Byonghoon Seo and Christoph Niemann
We present the first Thomson scattering measurements of electron density and temperature in the Large Plasma Device (LAPD), a 22 m long magnetized linear plasma device at the University of California Los Angeles (UCLA). The diagnostic spectrally resolves...
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Suotao Dong, Xiuhua Fu, Zhongyao Zhu and Cheng Li
The wide application of surface-enhanced Raman spectroscopy (SERS) is based on adaptable substrates, which are primarily limited to rough precious metals and colloidal nanoparticle materials. A novel method to enhance surface Raman scattering is present....
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Giovanni Romanelli, Carla Andreani, Enrico Ferraris, Christian Greco, Salima Ikram, Silvia Licoccia, Giuseppe Paladini, Stewart F. Parker, Enrico Preziosi, Roberto Senesi, Lucy Skinner, André J. Veldmeijer, Valentina Venuti and Valentina Turina
The Museo Egizio?s collection contains 200 precious and unique leather artifacts belonging to different historical periods. The materials used during the tanning and curing procedures affect the chemical and elemental composition of the surface of the sa...
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Xinlin Lv, Junchi Chen, Yujie Peng, Zhiyuan Huang, Yingbin Long, Xinliang Wang, Guanting Liu and Yuxin Leng
We demonstrate a discretely tunable multiwavelength visible laser through second harmonic generation (SHG) and sum frequency generation (SFG) of multiorder Stokes lasers generated from an external Raman laser oscillator. The Raman laser oscillator, drive...
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Yunpeng Liu, Xinye Li, Huan Li, Jiaxue Wang and Xiaozhou Fan
To accurately detect and monitor the internal temperature of an operating power transformer, the distributed optical fiber sensor (DOFS) was creatively applied inside an oil-immersed 35 kV transformer through high integration with the winding wire. On th...
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Chia-Man Chou, Le Tran Thanh Thi, Nguyen Thi Quynh Nhu, Su-Yu Liao, Yu-Zhi Fu, Le Vu Tuan Hung and Vincent K. S. Hsiao
We fabricated surface-enhanced Raman scattering (SERS) substrates using gold nanoparticle (AuNP)-decorated zinc oxide (ZnO) nanorods (NRs). Prior to decoration with AuNPs, ZnO NRs on the glass substrate fabricated using the sol?gel method could enhance t...
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Irina Boginskaya, Aliia Gainutdinova, Alexey Gusev, Karen Mailyan, Anton Mikhailitsyn, Marina Sedova, Artem Vdovichenko, Ilya Ryzhikov, Sergei Chvalun and Andrey Lagarkov
Spectroscopy based on surface enhanced Raman scattering (SERS) is widely used as a method with extremely high sensitivity for molecular and chemical analysis. We have developed thin-film sandwich structures, in which, when used as sensitive elements for ...
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