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中国科学院机构知识库网格

Chinese Academy of Sciences Institutional Repositories Grid

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	Photonic micro and sub-micro structures in LiNbO3 crystals (EI CONFERENCE) 会议论文 OAI收割 ICO20: Materials and Nanostructures, August 21, 2005 - August 26, 2005, Changchun, China 作者: Wang P. 收藏 \| 浏览/下载：16/0 \| 提交时间：2013/03/25 High energy lasers processing of materials is knowing an increasing interest since it not only can make manufacturing faster cleaner and more accurate but also because it opens up entirely new technologies and manufacturing methods that are simply not available by using standard techniques. In this paper an experimental set-up based on pulsed KrF excimer Laser assembled for surface patterning of mono and two-dimensional (1D-2D) micro and submicro structures on LiNbO3(LN) crystal will be described in detail. The apparatus has been used to produce photonic structures in LN both by patterning of PMMA photoresist and by direct surface patterning through laser ablation or direct laser writing. The structures and properties of the photonic crystals fabricated by using this apparatus have been investigated and the preliminary results will be presented.
	Photonic micro and sub-micro structures in LiNbO3 crystals - art. no. 60291J 会议论文 OAI收割 2006 Wang P. F.; Bentini G. G.; Bianconi M.; Cerutti A.; Chiarini M.; Mazzoldi P.; Pennestri G.; Sada C.; She L. 收藏 \| 浏览/下载：6/0 \| 提交时间：2013/03/28
	Integrated mach-zehnder micro-interferometer for gas trace remote sensing (EI CONFERENCE) 会议论文 OAI收割 ICO20: Remote Sensing and Infrared Devices and Systems, August 21, 2005 - August 26, 2005, Changchun, China 作者: Wang P. 收藏 \| 浏览/下载：28/0 \| 提交时间：2013/03/25 The realisation process and the preliminary tests on the performances of an integrated Mach-Zehnder Interferometer on LiNbO3 (Lithium Niobate) substrate is presented. The microsystem has been obtained by using medium mass Ion Implantation on X-cut Lithium Niobate crystals. The interferometer is formed by integrated optical channel waveguides: the phase shift between the two optical paths has been obtained 1mm 2 cross section and weights a few grams. The power consumption is in the milliwatt range. In the present work results obtained in the spectral window (0.4m-1.1m) will be presented. The performance of the device without moving parts evaluated on standard radiation sources by applying a suitable electric field. The whole device is 60mm long demonstrates that a spectral resolution better than 0.3nm can be obtained on 400nm spectral windows. The Micro-interferometer has been tested in laboratory with a calibrated cell containing NO2 gas and has demonstrated sensitivity in the ppb range if suitable optical paths are used. Its reduced dimensions and weights make these micro-systems ideal for a wide range of applications has a 0.57times spanning from Space Technology Earth observation for Environment monitoring to Safety and Security applications.