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Watanabe, Yasuaki

Specialized line

	Piezoelectric Device Engineering Electronic System Engineering
	Ultra-high speed visualization of in-plane vibrational mode shapes in UHF resonators Application technology of precise frequency and time

Major presented paper

High-Speed Measurement of Mode Shapes and Vibrational Displacement in Piezoelectric Resonators Using Two Lasers with Different Wavelengths, Japanese Journal of Applied Physics, Vol. 47, No. 5, 2008, pp. 3922-3925
Absolute Measurement of Surface Vibrational Distribution in Piezoelectric Devices Using Burst-Wave Driving, Japanese Journal of Applied Physics, Vol. 46, No. 7B, 2007, pp. 4504-4507
Method Based on Laser Speckle Interferometry for Measuring Absolute In-Plane Vibrational Distribution of Piezoelectric Resonators,Japanese Journal of Applied Physics, Vol. 45, No. 5B, 2006, pp. 4585-4587
Optimum Laser-Incident Angle for Measuring In-Plane Mode Shapes in Piezoelectric Resonators with Polished-Multilayered Surfaces, Acoustical Science and Technology, Vol. 27 (2006) No. 3, pp.180-182
Laser-Incident Angle Optimization for Measuring In-Plane Mode Shapes in Piezoelectric Resonators with Polished Surfaces, Proc. of the 2005 IEEE International Frequency Control Symposium, 2005
Absolute Measurement of In-Plane Vibrational Distributions in Piezoelectric Resonators Based on Laser Speckle Interferometry, Proc. of the 2005 IEEE International Frequency Control Symposium, 2005
Mode-Shape Visualization of High-Frequency Piezoelectric Devices using Synchronized Laser System, Japanese Journal of Applied Physics, vol. 44, No. 6B, pp.4440-4442, 2005
Nonscanning Measurements for Determining In-Plane Mode Shapes in Piezoelectric Devices with Polished Surfaces, IEEE TRANSACTIONS ON ULTRASONICS, FERROELECTRICS,
In-Plane Mode Shape Visualization of Piezoelectric Resonators using Stroboscopic Laser Irradiation, Proc.of 2004 IEEE International Ultrasonics, Ferroelectrics, and Frequency Control 50th Anniversary Joint Conference, (2004-08)
Near-Carrier Phase-Noise Characteristics of Narrow Band Colpitts Oscillators , Proc.of 2004 IEEE International Ultrasonics, Ferroelectrics, and Frequency Control 50th Anniversary Joint Conference, (2004-08)

Lecture

	Electronic Circuits for Integrated Circuits Exercises in Electronic Circuits Electrical System Engineering Electrical and Electronic Engineering Laboratory II Digital Circuits