Multi-Wavelength Pulse Generation Using Narrow-Gap Topological Crystalline Insulator Pb<sub>1-X</sub>Sn<sub>X</sub>Te
A multi-wavelength pulse is generated using chemical vapor deposition method (CVD) to fabricate the topological crystalline insulator (TCI) Pb<sub>1-X</sub>Sn<sub>X</sub>Te as a saturated absorber (SA). Compared with other SA materials, Pb<sub>1-X</sub>Sn<sub&g...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2023-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10246977/ |
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| Summary: | A multi-wavelength pulse is generated using chemical vapor deposition method (CVD) to fabricate the topological crystalline insulator (TCI) Pb<sub>1-X</sub>Sn<sub>X</sub>Te as a saturated absorber (SA). Compared with other SA materials, Pb<sub>1-X</sub>Sn<sub>X</sub>Te have advantages of narrow bandgap and high optical absorption in the near-infrared region. The laser produced a stable four-wavelength lasing configuration characterized by a wavelength spacing of approximately 2 nm, with pulse duration, repetition rate, and signal-to-noise ratio (SNR) of 0.899 to 0.854 µs, 1.08 to 1.15 MHz, and 31.5 dB, respectively. The results indicate that the Pb<sub>1-X</sub>Sn<sub>X</sub>Te-SA is suitable for pulsed generation in the near-infrared region and its potential in various fields, including super-resolution imaging, high-density optical storage, and three-dimensional laser lithography. |
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| ISSN: | 1943-0655 |