[1] Christopher B Stipe, Brian D Hensley, Jeffrey L Boersema, et al. Applied Spectroscopy, 2010, 62(2): 154.
[2] Tognoni E, Cristoforetti G, Legnaioli S. Spectrochimica Acta Part B, 2007, 62(12): 1287.
[3] Kemal E Eseller, Markandey M Tripathi, Fangyu Yueh, et al. Applied Optics, 2010, 49(13): C21.
[4] Rosalie A Multari, David A Cremers, Joanne M Dupre, et al. Applied Spectroscopy, 2010, 64(7): 750.
[5] Nai Shuocheng, Angelos A, Michael G, et al. IEEE Trans.On Microwave Theory Techniques, 1999, 47: 1070.
[7] Jeong J, Kwon Y, Lee S, et al. IEEE Trans. On Microwave Theory Techniques, 2000, 48(12): 2700.
[8] Robert J Nordstrom. Applied Spectroscopy, 1995, 49(10): 1490.