2016
DOI: 10.1364/josab.33.000d19
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Vibronic thulium laser at 2131  nm Q-switched by single-walled carbon nanotubes

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Cited by 46 publications
(12 citation statements)
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“…Fig. 5 [93]. Such vibronic emissions have been previously observed only in bulk Tm lasers [93][94][95].…”
Section: Conventional Pumpingmentioning
confidence: 54%
“…Fig. 5 [93]. Such vibronic emissions have been previously observed only in bulk Tm lasers [93][94][95].…”
Section: Conventional Pumpingmentioning
confidence: 54%
“… (a) Small-signal absorption spectra of the ZnO NRs grown hydrothermally on glass substrates for 5–15 h, T (ZnO NRs) = T (ZnO NRs + substrate)/ T (substrate); (b) estimation of the scattering losses in ZnO NRs grown for 5 h and 10 h (dashed curves); (c) comparison of the small-signal absorption spectra of the ZnO NRs grown for 10 h, multilayer graphene with n = 3 carbon layers, multilayer MoS 2 film [ 31 ] and SWCNT/PMMA film [ 32 ]; (d) room temperature photoluminescence (PL) spectrum of ZnO NRs grown for 15 h, the excitation wavelength is 0.350 µm: grey curve – the measured PL spectrum, color bands – decomposition of the PL spectrum into Gaussian components; (e) scheme of the defect states in the bandgap of ZnO (the color of arrows corresponds to the color of the emission bands in (d). …”
Section: Resultsmentioning
confidence: 99%
“…In Fig. 3 , we compare the small-signal absorption spectra of ZnO NRs grown for 10 h and several well-known nanostructured “fast” SAs, namely a commercial graphene-SA containing several ( n = 3) carbon layers, a SA based on randomly oriented SWCNTs in a PMMA film [ 32 ], and a few-layer MoS 2 SA [ 31 ]. One can observe a similar broadband absorption feature for the ZnO NRs as in these reference SAs.…”
Section: Resultsmentioning
confidence: 99%
“…This wavelength is well beyond the limit for the purely electronic 3 F 4 → 3 H 6 Tm 3+ transition in MgWO 4 (2017 nm, between the Stark sub-levels with the energies 5591 cm −1 ( 3 F 4 ) and 633 cm −1 ( 3 H 6 ) [6]), i.e., the first, to the best of our knowledge, demonstration of a vibronic WG laser. It is assigned to the electron-phonon coupling with the low-frequency Raman modes in MgWO 4 [17], Fig. 2(a), such as 121 (A g ), 134, or 154 (both B g ) cm −1 .…”
mentioning
confidence: 99%