Single-Nanosecond-Pulse Lasing in Heavily Doped Fe:ZnSe
نویسندگان
چکیده
We investigated room-temperature pulsed lasing in heavily doped Fe:ZnSe single crystals. The active elements were pumped by a Q-switched Cr 3+ :Yb :Ho :YSGG laser operating at 2.87 μm. Our results show that the generation of short pulses has deep high-frequency modulation associated with relaxation dynamics Fe:ZnSe. regime obtained this study provides straightforward way to generate mid-IR nanosecond moderate pump energies. Moreover, we found relation between pulse duration and concentration Fe xmlns:xlink="http://www.w3.org/1999/xlink">2+ doping ions, experimentally demonstrated shortening Single-pulse an FWHM ~2.8 ns was achieved ZnSe crystals 2.3 · 10 xmlns:xlink="http://www.w3.org/1999/xlink">19 cm xmlns:xlink="http://www.w3.org/1999/xlink">-3 ions. single-pulse is applicable for seeding high-power systems.
منابع مشابه
Compact Nanosecond Pulse Generator
A compact nanosecond pulse generator was designed and tested. The generator has a specially designed unit consisting of an HCEIcap 1000.2 capacitor and a multigap switch. The total inductance of the unit is 20 nH. The modifications made in the design allowed an increase in energy density up to 370 J/l at an electric field strength of 200 kV/mm. The volume of the capacitor active part is 2.3 l. ...
متن کاملNanosecond soliton pulse generation by mode-locked erbium-doped fiber laser using single-walled carbon-nanotube-based saturable absorber.
We demonstrate a simple and low cost mode-locked erbium-doped fiber laser (EDFL) operating in the nanosecond region using a single-walled carbon nanotube (SWCNT)-based saturable absorber (SA). A droplet of SWCNT solution is applied on the end of a fiber ferrule, which is then mated to another clean connector ferrule to construct an SA. Then the SA is integrated into a ring EDFL cavity for nanos...
متن کاملSuperconductivity in heavily boron-doped silicon carbide.
The discoveries of superconductivity in heavily boron-doped diamond in 2004 and silicon in 2006 have renewed the interest in the superconducting state of semiconductors. Charge-carrier doping of wide-gap semiconductors leads to a metallic phase from which upon further doping superconductivity can emerge. Recently, we discovered superconductivity in a closely related system: heavily boron-doped ...
متن کاملInteractions and superconductivity in heavily doped MoS2
We analyze the microscopic origin and the physical properties of the superconducting phase recently observed in MoS2. We show how the combination of the valley structure of the conduction band, the density dependence of the screening of the long-range Coulomb interactions, the short-range electronic repulsion, and the relative weakness of the electron-phonon interactions makes possible the exis...
متن کاملGiant pulse lasing in three-level systems
We propose an alternative method to Q switching for generating giant pulses of laser light in three-level media. This mehod is based on the presence of an external coherent field driving one transition to allow the accumulation of a large population inversion in the other transition without laser oscillation even in a cavity with high-Q factor. The switching off of the external coherent field c...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Photonics Journal
سال: 2021
ISSN: ['1943-0655', '1943-0647']
DOI: https://doi.org/10.1109/jphot.2020.3046363