標題: Single femtosecond laser pulse-single crystal formation of glycine at the solution surface
作者: Liu, Tsung-Han
Uwada, Takayuki
Sugiyama, Teruki
Usman, Anwar
Hosokawa, Yoichiroh
Masuhara, Hiroshi
Chiang, Ting-Wei
Chen, Chun-Jung
應用化學系
應用化學系分子科學碩博班
Department of Applied Chemistry
Institute of Molecular science
關鍵字: Crystal morphology;Interfaces;Single crystal;Femtosecond laser;Glycine
公開日期: 1-Mar-2013
摘要: We demonstrate femtosecond laser-induced crystallization of glycine from its supersaturated solution depending on laser tunable parameters (pulse energy and repetition rate) and focal position, and examine the crystallization probability, crystal morphology, and crystal polymorph. The generation of cavitation bubble through multiphoton absorption of water depends on input laser pulse energy and repetition rate, which strongly determine morphology and number of the obtained crystals. Significant increase in the crystallization probability is observed by irradiating the femtosecond laser pulses to the air/solution interface, and single pulse-induced single crystal formation is successfully achieved. The crystallization mechanism is discussed in view of inhomogeneous mechanical stress induced by cavitation bubble generation and molecular assembly characteristics of the surface. (C) 2012 Elsevier B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.jcrysgro.2012.11.018
http://hdl.handle.net/11536/21196
ISSN: 0022-0248
DOI: 10.1016/j.jcrysgro.2012.11.018
期刊: JOURNAL OF CRYSTAL GROWTH
Volume: 366
Issue: 
起始頁: 101
結束頁: 106
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