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Updated: Feb 6, 2026

Fabrication of Nanoheight Channels Incorporating Surface Acoustic Wave Actuation via Lithium Niobate for Acoustic Nanofluidics
Published on: February 5, 2020
Upper temperature limit and multi-channel effects in ellipsoidal lithium-niobate optical parametric oscillators
Abstract:
This paper theoretically investigated type-I optical parametric oscillations (OPOs) in lithium niobate (LN) ellipsoidal microcavities. We calculated the dependence of signal (idler) wavelength on temperature and found that multiple OPO channels are universal phenomenon in LN whispering gallery mode (WGM) microcavities. Additionally, We discovered OPOs in LN WGM microcavities, instead of having a lower-temperature limit, have an upper-temperature limit beyond which no OPO takes place. The dependence of the OPO tuning behaviors on the cavity geometry and pump wavelength was discussed systematically. Our investigations provide new conceptions for OPOs in LN WGM microcavities and may benefit the research on tunable laser sources or high-order entangled photon sources.
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