What question did this study set out to answer?

To develop a low-power, compact integrated photonic phase shifter operating at near-visible wavelengths for cold-atom quantum technologies and optical signal processing.

July 10, 2025ACS Photonics

Near-Visible Low-Power Tuning of Nematic-Liquid Crystal Integrated Silicon Nitride Ring Resonator

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Authors

JDJayita DuttaUniversity of Washington AFAntonio FerraroUniversity of Catania AMArnab MannaUniversity of Washington

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Implication

Experimental study demonstrates ultra-low-power optical phase shifting in a liquid-crystal silicon nitride resonator, indicating viable scaling for quantum systems.

Key Points

To develop a low-power, compact integrated photonic phase shifter operating at near-visible wavelengths for cold-atom quantum technologies and optical signal processing.
Integrated nematic liquid crystals (E7) into a silicon nitride ring resonator platform.
Characterized optical phase modulation and electrical power performance at a near-visible wavelength of 780 nm.
Achieved approximately 2π optical phase modulation using an ultra-low operating power of 2.1 nW.
Demonstrated a driving voltage of approximately 7 V with a half-wave voltage-length product (Vπ·L) of 0.014 V·cm.

Cite This Study

Dutta et al. (2025) studied this question.

synapsesocial.com/papers/6a73d9d78cee7e0fe6a8bd7e https://doi.org/10.1021/acsphotonics.5c00715

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Implication

Experimental study demonstrates ultra-low-power optical phase shifting in a liquid-crystal silicon nitride resonator, indicating viable scaling for quantum systems.

Near-Visible Low-Power Tuning of Nematic-Liquid Crystal Integrated Silicon Nitride Ring Resonator

Discussion

Member takes

Implication

Key Points

Cite This Study

Near-Visible Low-Power Tuning of Nematic-Liquid Crystal Integrated Silicon Nitride Ring Resonator

Discussion

Member takes

Implication

Key Points

Cite This Study

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