Events

For more information, please see www.physics.oregonstate.edu/TeachSeminar

Perovskite structures can exhibit a wide range of structural modifications based on changes in octahedral ordering and tilting, cation coordination, and bond lengths and angles. Often these materials are designed to operate near intrinsic structural or chemical instabilities to take advantage of the resultant superior materials properties. This has directly led to the use of perovskites in numerous applications including piezoelectricity, high temperature superconductivity, ferroelectricity, and many others.

For more information, please see www.physics.oregonstate.edu/TeachSeminar

For more information, please see www.physics.oregonstate.edu/TeachSeminar

Bright, tunable sources of narrow-band THz radiation are highly desirable for studies of low energy excitations of various systems such as phonons, strongly correlated electron systems, and the rotational and vibrational states of molecules. Techniques developed so far to obtain narrow-band THz pulses include mixing chirped optical pulses in a photoconductive switch; optical rectification of shaped pulses; and optical rectification in quasi-phase matching nonlinear crystals.

For more information, please see www.physics.oregonstate.edu/TeachSeminar

Wide band gap semiconductors are important elements in a new class of applications that can be broadly categorized as transparent t electronics. They are used as transparent electrodes, insulators, and active layers (e.g. channel layers in transistors or light emitters in diodes). In this talk, I will focus on chalcogenides, s, oxy-chalgogenides, and chalogenide fluorides as examples of such materials.

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For more information, please see www.physics.oregonstate.edu/TeachSeminar

Laser processes have been applied to microscale to nanoscale technologies where wafer level laser micromachining or surface processing of silicon, glass, and other materials are crucial steps to realize the potential of new products or their developments. Especially, the laser processing of silicon using nanosecond laser pulses provides the capabilities of high precision and fast processing in micromachining applications.