Broadband Tunable Photon-Pair Generation and Spectrum Measurement Based on Noncritical Lithium Niobate Crystals
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2026
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866908829509222400 |
|---|---|
| author | Han, Zhao-Qi-Zhi Liu, Bo-Wen Zhang, He Li, Zhi-You Wang, Xiao-Hua Li, Jin-Peng Zhou, Zheng-He Chen, Qi-Yu Li, Yin-Hai Zhou, Zhi-Yuan Shi, Bao-Sen |
| author_facet | Han, Zhao-Qi-Zhi Liu, Bo-Wen Zhang, He Li, Zhi-You Wang, Xiao-Hua Li, Jin-Peng Zhou, Zheng-He Chen, Qi-Yu Li, Yin-Hai Zhou, Zhi-Yuan Shi, Bao-Sen |
| contents | Photon pairs play a vital role in modern science, driving extensive research into their generation. Yet, the narrow phase-matching bandwidth of conventional crystals has largely confined studies to specific wavelengths, leaving research on broadband tunable sources underexplored. Here, we employ a non-critical phase-matched lithium niobate (LN) crystal to generate widely tunable photon pairs. The generated near-infrared (NIR) photon pairs exhibit a high coincidence-to-accidental ratio (CAR > 20 dB) and are tunable across the 800-1600 nm range. We further showcase the utility of NIR photon pairs in spectroscopy by detecting carbon monoxide (CO) gas absorption. This approach will facilitate the design of advanced LN-based photonic experiments. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_11752 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Broadband Tunable Photon-Pair Generation and Spectrum Measurement Based on Noncritical Lithium Niobate Crystals Han, Zhao-Qi-Zhi Liu, Bo-Wen Zhang, He Li, Zhi-You Wang, Xiao-Hua Li, Jin-Peng Zhou, Zheng-He Chen, Qi-Yu Li, Yin-Hai Zhou, Zhi-Yuan Shi, Bao-Sen Optics Photon pairs play a vital role in modern science, driving extensive research into their generation. Yet, the narrow phase-matching bandwidth of conventional crystals has largely confined studies to specific wavelengths, leaving research on broadband tunable sources underexplored. Here, we employ a non-critical phase-matched lithium niobate (LN) crystal to generate widely tunable photon pairs. The generated near-infrared (NIR) photon pairs exhibit a high coincidence-to-accidental ratio (CAR > 20 dB) and are tunable across the 800-1600 nm range. We further showcase the utility of NIR photon pairs in spectroscopy by detecting carbon monoxide (CO) gas absorption. This approach will facilitate the design of advanced LN-based photonic experiments. |
| title | Broadband Tunable Photon-Pair Generation and Spectrum Measurement Based on Noncritical Lithium Niobate Crystals |
| topic | Optics |
| url | https://arxiv.org/abs/2602.11752 |