Wideband Hybrid Monolithic Lithium Niobate Acoustic Filter in the <i>K</i>-Band

Monolithic ultra-high-Q lithium niobate microring resonator

MIAN ZHANG, CHENG WANG, REBECCA CHENG, AMIRHASSAN SHAMS-ANSARI, AND MARKO LONČAR* John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA Department of Physics, Brown University, Providence, Rhode Island 02912, USA Department of Electrical Engineering and Computer Science, Howard University, Washington, DC 20059, USA *Corresponding aut...

Sub-band-gap laser micromachining of lithium niobate

12 Photonic and Phononic Band Gap Properties of Lithium Niobate

Tunable narrow-band terahertz generation from periodically poled lithium niobate

We describe a technique for generating tunable narrow-band terahertz radiation via optical rectification in periodically-poled lithium niobate. Frequency tuning is accomplished by spatially chirping the domain width laterally to the beam propagation direction, and adjusting the temperature of the sample. We demonstrate tuning over a continuous range from 0.8 to 2.5 THz. The bandwidth of the ter...

High-temperature acoustic emission tests using lithium niobate piezocomposite transducers

Acoustic emission (AE) analysis is used for testing materials in structural components and machinery. Acoustic emission frequently consists of ultrasound in the frequency range 100 kHz to 1 MHz, generated either from growing cracks or from mechanical failure in rotating machinery. In the case of crack growth, individual AE events correspond to the release of elastic energy as the crack grows st...