Second harmonic generation in ZnO thin films fabricated by metalorganic chemical vapor deposition

• Published in: Optics communications Vol. 237; no. 1; pp. 65 - 70
• Main Authors: Liu, C.Y., Zhang, B.P., Binh, N.T., Segawa, Y.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.07.2004; Elsevier Science
• Subjects: Exact sciences and technology; Frequency conversion ; harmonic generation, including high-order harmonic generation; Fundamental areas of phenomenology (including applications); Metalorganic chemical vapor deposition; Nonlinear optics; Optics; Physics; Second harmonic generation; Second-order susceptibility; 42.55. Sa; 42.55.Px; Second harmonic generation; Second-order susceptibility; 77.80.−e; Metalorganic chemical vapor deposition; Thin films; Scanning electron microscopy; Zinc oxides; Manufacturing processes; Temperature effects; XRD; Optical frequency conversion; Experimental study; MOCVD; Nonlinear optics; Nonlinear optical susceptibility
• ISSN: 0030-4018; 1873-0310
• DOI: 10.1016/j.optcom.2004.03.064

Second harmonic generation (SHG) from ZnO thin films fabricated by metalorganic chemical vapor deposition (MOCVD) technique was carried out. By comparing the second harmonic signal generated in a series of ZnO films with different deposition temperatures, we conclude that a significant part of second harmonic signal is generated at the film deposited with appropriate temperature. The second-order susceptibility tensor χ (2) zzz =9.2 pm/V was deduced for a film deposited at 250 °C.