Diagnostic techniques for photonic materials based on Raman and Brillouin spectroscopies

作     者：M. Mattarelli S.Caponi A. Chiappini M. Montagna E. Moser F. Rossi C.Tosello C. Armellini A. Chiasera M. Ferrari Y. Jestin G. Nunzi Conti S. Pelli G.C. Righini 

作者机构：Dipartimento di FisicaUniversità di Trento CSMFO groupTrentoItaly INFM CRS-SOFTc/o Universita' di Roma "La Sapienza"I-00185RomaItaly CNR-IFNIstituto di Fotonica e NanotecnologieCSMFO groupTrentoItaly. Photonic Materials and Devices LaboratoryIFAC-CNRSesto FiorentinoItaly. CNRDepartment of Materials and DevicesRomaItaly. 

出 版 物：《Optoelectronics Letters》 (光电子快报（英文版）)

年 卷 期：2007年第3卷第3期

页      面：188-191页

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：The present work has been funded partly with the financial supportof MIUR-FIRB RBNE012N3X  MIUR PRIN  PAT FAPVU 2004-2006 

主　　题：拉曼光谱 布里渊光谱 光子材料 诊断技术 

摘      要：The elastic and vibrational properties of a material, bulk or planar waveguide, are studied by BriUouin and Raman spectroscopy to follow the process of nanocrystals growth in glass-ceramics. The nanoparticles cause the appearance, in the low frequency Raman spectrum, of characteristic peaks, whose position depends on the size of the crystals. At the same time, sharp crystal peaks, due to optical phonons, appear in the Raman spectra, allowing the determination of the nucleated phase, and a frequency shift of the BriUouin peaks is observed.