Related Experiment Video
Updated: Jan 13, 2026
12:19
Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
Published on: April 4, 2017
8.8K
Multifunctional Integration of Laser, Waveguide, and All-Optical Logic Gate within a Single Ultralong CsPbBr3
Changhai Zhu1,2, Jiepeng Song2, Yuyang Zhang2
1School of Physics and Electronic Engineering, Chongqing Normal University, Chongqing 401331, China.
Nano Letters
|January 8, 2026
Summary
Researchers developed long, single-crystalline cesium lead bromide (CsPbBr3) nanowires for integrated nanophotonics. These nanowires demonstrate high optical gain and low loss, enabling advanced photonic integrated circuits.
Area of Science:
- Materials Science
- Nanotechnology
- Photonics
Background:
- Semiconductor nanowires (NWs) are crucial for next-generation photonic integrated circuits, acting as gain media, waveguides, and optical cavities.
- High optical gain and superior waveguide properties in long NWs are essential for multifunctional photonic devices.
Purpose of the Study:
- To synthesize long, single-crystalline CsPbBr3 nanowires with subwavelength widths.
- To evaluate their lasing performance and waveguide properties for integrated nanophotonics.
Main Methods:
- Chemical vapor deposition (CVD) was employed to synthesize single-crystalline CsPbBr3 nanowires up to 300 μm in length.
- Optical characterization was performed to determine lasing performance (Q factor) and waveguide loss coefficient.
Main Results:
- Synthesized CsPbBr3 nanowires exhibited a high quality factor (Q factor) of 5538.
- Achieved a low optical loss coefficient of 0.88 dB mm⁻¹.
- Developed an integrated laser-waveguide device demonstrating all-optical OR/AND logic and cascaded signal transmission.
Conclusions:
- Single-crystalline CsPbBr3 nanowires possess excellent optical gain and waveguide properties.
- These perovskite nanowires are promising building blocks for advanced integrated nanophotonic devices and circuits.
