Self-starting mode-locked Cr:ZnS laser using single-walled carbon nanotubes with resonant absorption at 2.4 μm: ZnS laser using single-walled carbon nanotubes with resonant absorption at 2.4 mu m
Research output: Contribution to journal › Article › Scientific › peer-review
Researchers
Research units
- University of Tokyo
- Natl Inst Adv Ind Sci & Technol, National Institute of Advanced Industrial Science & Technology (AIST), Energy Nano Engn Lab
- RIKEN, RIKEN, RIKEN Ctr Adv Photon, Photon Control Technol Team
- Canatu Oy
Abstract
We develop a mode-locked Cr:ZnS polycrystalline laser using single-walled carbon nanotubes (SWCNTs) that have resonant absorption at the wavelength of 2.4 μm. The laser generates ultrashort pulses of 49 fs duration, a 2.4 μm center wavelength, and a 9.2 THz (176 nm) spectral span at a repetition rate of 76 MHz. We also confirm self-starting of the mode-locked operation. SWCNTs, if appropriately controlled in terms of their diameters, prove to be useful as ultrafast saturable absorbers in the mid-infrared region.
Details
| Original language | English |
|---|---|
| Pages (from-to) | 1750-1753 |
| Number of pages | 4 |
| Journal | Optics Letters |
| Volume | 44 |
| Issue number | 7 |
| Publication status | Published - 1 Apr 2019 |
| MoE publication type | A1 Journal article-refereed |
- HIGH-HARMONIC-GENERATION, DYNAMICS
Research areas
ID: 33073288
