Carbon monoxide laser emitting nanosecond pulses with 10MHz repetition rate

Ионин, А. А.; Klimachev, Yu. M.; Kotkov, A. A.; Kozlov, A. Yu.; Селезнев, Л. В.; Sinitsyn, D. V.

doi:10.1016/j.optcom.2008.09.089

Cited by 22 publications

(7 citation statements)

References 6 publications

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“…To obtain the required pulses of radiation, a pulsed gas-discharge mode-locked CO laser was developed [14]. Due to a relatively low laser pulse repetition rate (10 MHz), a long laser cavity had to be used (cavity length of 15 m).…”

Section: Generation Of Second Harmonic Of a Nanosecond Co Lasermentioning

confidence: 99%

Frequency conversion of radiation of IR molecular gas lasers in nonlinear crystals (A review)

et al. 2015

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The solution of problems related, e.g., to transport of laser radiation in the atmosphere requires availability of a broadband IR laser source operating in the transparency windows of the atmosphere. In this review, we present the results of an investigation of the properties of a hybrid laser system consisting of molecular gas pump lasers and a solid-state laser frequency converter based on nonlinear crystals. We demonstrate broadening and enrichment of spectrum of radiation of the pump laser by means of sum-and difference-frequency generation. In particular, by using a relatively simple laser system consisting of gas-discharge CO and CO 2 lasers, radiation tunable over a large number of spectral lines in a broad range of wavelength from 2.5 to 16.6 μm (more than two and a half octaves), which includes two transparency windows of the atmosphere, is obtained. Thus, the possibility of exploring the IR spectral range by means of hybrid laser systems based on frequency conversion of radiation of molecular gas lasers is demonstrated.

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Section: Generation Of Second Harmonic Of a Nanosecond Co Lasermentioning

confidence: 99%

Frequency conversion of radiation of IR molecular gas lasers in nonlinear crystals (A review)

et al. 2015

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“…In this process, the laser irradiates to the surface of the substrate and causes deposition of the thin film on the surface of the substrate. Laser-induced nanostructure on the surface of the thin film includes several thermodynamic processes such as gasification, ablation, melting, and oxidation [8,9]. Among different nanostructures categories, metal-based nanostructures have a great deal of research due to their unique optical, electronic, and sensing properties [10,11].…”

Section: Introductionmentioning

confidence: 99%

Temporal-Spatial Measurement of Surface Morphological Evolution Time in Nanosecond Laser Irradiation on the Copper Film

et al. 2022

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In this research, the pump-probe imaging technology and the time-resolved transmittance measurements are used to investigate the transient time scale of the oxidation area, the dewetted melt pool, and the ablation-induced mass transport, and their dependence on the incident laser. Moreover, the evolution time of various morphologies have been studied through a certain delay time from 10 to 30 ns with different dynamic processes. Meanwhile, the underlying formation mechanism and the phase change pathway have been studied. In this regard, a nanosecond (ns) pulsed laser with 532 nm wavelength was used to fabricate nanostructures on the surface of the thin Copper (Cu) films. The observations confirmed that the oxidation process of Cu plays a significant role in the mechanism of laser fluence-dependent oxidation, melting, and ablation dynamics. The results revealed that the different characteristics of the Cu film are related to the incident laser pulse energy. Furthermore, the experimental evidence was in good agreement with the SEM images and the Raman spectra. It is found that the Cu2O surface-rim with a central hole could be fabricated with the laser fluences above the ablation threshold. Although, for the laser fluences below the ablation threshold, the Cu2O phase can be formed in the central region.

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“…Therefore, earlier Q-switch mode in CO lasers was provided only when using a rotating mirror (for example [9,10]). An acousto-optic modulator was used only in two experimental series to provide mode locking [11,12]. And finally, Q-switching techniques, such as saturating absorbers or plasma mirrors are not applicable to multi-wavelength CO lasers at all.…”

Section: Introductionmentioning

confidence: 99%

Q-switched slab RF discharge CO laser

et al. 2017

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A compact repetitively pulsed cryogenically cooled slab RF discharge CO laser with double path V-type laser resonator equipped with external Q-switching system based on rotating mirror was developed and studied. The laser produced mid-IR (λ ~ 5-7 µm) radiation pulses of ~1 ÷ 2 µs duration (FWHM), peak power up to ~3 kW, and pulse repetition rate up to 130 Hz. Averaged output laser power reached 0.5 W, the laser spectrum consisted of ~80 laser lines with individual peak power up to 80 W.

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Carbon monoxide laser emitting nanosecond pulses with 10MHz repetition rate

Cited by 22 publications

References 6 publications

Frequency conversion of radiation of IR molecular gas lasers in nonlinear crystals (A review)

Frequency conversion of radiation of IR molecular gas lasers in nonlinear crystals (A review)

Temporal-Spatial Measurement of Surface Morphological Evolution Time in Nanosecond Laser Irradiation on the Copper Film

Q-switched slab RF discharge CO laser

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