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http://hdl.handle.net/10397/95627
Title: | Vertically standing PtSe2 film : a saturable absorber for a passively mode-locked Nd:LuVO4 laser | Authors: | Tao, L Huang, X He, J Lou, Y Zeng, L Li, Y Long, H Li, J Zhang, L Tsang, YH |
Issue Date: | 1-Jul-2018 | Source: | Photonics research, 1 July 2018, v. 6, no. 7, p. 750-755 | Abstract: | The novel vertically standing PtSe2 film on transparent quartz was prepared by selenization of platinum film deposited by the magnetron sputtering method, and an Nd:LuVO4 passively mode-locked solid-state laser was realized by using the fabricated PtSe2 film as a saturable absorber. The X-ray diffraction pattern and Raman spectrum of the film indicate its good crystallinity with a layered structure. The thickness of PtSe2 film is measured to be 24 nm according to the cross-section height profile of the atomic force microscope image. High-resolution transmission electron microscopy images clearly demonstrate its vertically standing structure with an interlayer distance of 0.54 nm along the c-axis direction. The modulation depth (ΔT) and saturation fluence (Φs) of PtSe2 film are measured to be 12.6% and 17.1 μJ∕cm2, respectively. The obtained mode-locked laser spectrum has a central wavelength of 1066.573 nm, with a 3 dB bandwidth of 0.106 nm. The transform limited pulse width of the mode-locked laser was calculated to be 15.8 ps. A maximum average output power of 180 mW with a working repetition rate of 61.3 MHz is obtained. To the best of our knowledge, this is the first report of the generation of ultrafast mode-locked laser pulses by using layered PtSe2 as a saturable absorber. | Publisher: | Optical Society of America | Journal: | Photonics research | ISSN: | 2327-9125 | DOI: | 10.1364/PRJ.6.000750 | Rights: | © 2018 Chinese Laser Press Posted with permission of the publisher. The following publication Tao, L., Huang, X., He, J., Lou, Y., Zeng, L., Li, Y., ... & Tsang, Y. H. (2018). Vertically standing PtSe 2 film: a saturable absorber for a passively mode-locked Nd: LuVO 4 laser. Photonics Research, 6(7), 750-755 is available at https://doi.org/10.1364/PRJ.6.000750. |
Appears in Collections: | Journal/Magazine Article |
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