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Double-Wall Carbon Nanotubes for Wide-Band, Ultrafast Pulse Generation

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Academic year: 2021

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Figure

Figure 2. Absorption spectrum of DWNTs dispersed in D 2 O in the 300 1800 nm range. The contribution from D 2 O is subtracted
Figure 4a plots the RBM region for the nanotube samples. Note that the RBM detection range is limited by the cutoff of the notch and edge filters at 140, 160, 150, 130, and 150 cm 1 for 457, 488, 514.5, 632.8, and 785 nm, respectively
Figure 6 shows the optical absorption of the nanotubepolymer composite. This has two absorp-tion bands centered at ∼1.1 and ∼2 μm with a peak width of ∼250 and ∼350 nm, respectively
Figure 7a shows the setup for 1 μm. A 2 m Yb-doped fiber-based optical amplifier is used to provide gain for lasing
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