Significant blue-shift in photoluminescence excitation spectra of Nd3+:LaF3 potential laser medium at low-temperature

Arita, Ren; Minami, Yuki; Cadatal-Raduban, Marilou; Pham, Minh Hong; Empizo, Melvin John F.; Luong, Mui Viet; Hori, Takumi; Takabatake, Masahiro; Fukuda, Kazuhito; Mori, K.; Yamanoi, Kohei; Shimizu, Toshihiko; Sarukura, Nobuhiko; Fukuda, Kentaro; Kawaguchi, Noriaki; Yokota, Yuui; Yoshikawa, Akira

doi:10.1016/j.optmat.2015.06.020

Cited by 10 publications

(1 citation statement)

References 19 publications

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“…Wide band gap fluoride crystals with band gap energies greater than 6 eV has short emission wavelengths in the VUV region especially when doped with rare earth (RE) ions such as trivalent neodymium (Nd 3+ ) and erbium (Er 3+ ). [4][5][6][7] Photoluminescence from RE-doped fluorophosphate glass scintillators, such as 20Al(PO 3 ) 3 -80LiF (APLF80), have also been reported to have fast nanosecond scintillation decay times and sufficient light yield for neutron detection. [8][9][10][11] Self-trapped exciton (STE) luminescence observed in undoped wide band-gap insulators such as BaF 2 , 12) SrF 2 , 13) CaF 2 14) and their mixed compounds 15,16) also satisfy Eq.…”

Section: Introductionmentioning

confidence: 99%

Investigation of cross luminescence in lanthanum fluoride as a potential fast-response scintillator

Cadatal-Raduban

Yoshikawa

Luong

et al. 2020

Jpn. J. Appl. Phys.

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We report the potential of lanthanum fluoride (LaF3) as a fast-response scintillator. When excited by an extreme ultraviolet free electron laser, neodymium-doped LaF3 (Nd3+:LaF3) exhibited a 1.9 ns fast decay component and a 6.7 ns slow decay component for its 172 nm emission peak. The slow decay component is due to interconfigurational 4f25d-4f3 transition in Nd3+. First principles density functional theory calculations using the Perdew–Burke–Ernzerhof hybrid functional including exact exchange (PBE0) and the Green’s function and screened Coulomb interaction (GW) approximation as implemented in the Vienna Ab initio Simulation Package using plane-wave basis sets within the projector-augmented wave method elucidate the electronic structure of LaF3 and reveal that the fast decay component could be due to partial cross luminescence (CL) from the bottom of the valence band to the top of the outermost core band. The presence of CL alludes to the potential of LaF3 as a fast-response scintillator.

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Section: Introductionmentioning

confidence: 99%

Investigation of cross luminescence in lanthanum fluoride as a potential fast-response scintillator

Cadatal-Raduban

Yoshikawa

Luong

et al. 2020

Jpn. J. Appl. Phys.

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Luminescence Properties of Nd³⁺‐Doped AlF₃‐Based Fluoride Glass in the Vacuum Ultraviolet Region

Yamanoi

Minami

Shimizu

et al. 2020

Physica Status Solidi (b)

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The development and characterization of the optical properties of a neodymium(III)‐doped 42.75AlF3–33.25CaF2–19BaF2–5YF3 (Nd3+‐doped BCA‐5Y) glass in the vacuum ultraviolet (VUV) region are reported. Photoluminescence peaks at 180 and 227 nm are observed upon excitation with the 157 nm emission of a F2 laser. The dominant 180 nm emission peak is assigned to the 4f25d–4f3 (4I9/2 level) transition in Nd3+. This emission peak exhibits a fast, single exponential luminescence with a 16 ns decay time. The strong luminescence intensity and the fast decay time allude to its prospects for scintillator applications.

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Achromatic Deep Ultraviolet Lens Using Novel Optical Materials

Minami

Cadatal-Raduban

Kuroda

et al. 2020

Physica Status Solidi (b)

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The development of an achromatic lens in the deep ultraviolet (DUV) region is reported. The dispersion and Abbe numbers of lithium calcium aluminum fluoride (LiCaAlF6), magnesium fluoride (MgF2), lithium fluoride (LiF), calcium fluoride (CaF2), and fused silica (SiO2) are investigated in the wavelength range from 200 to 300 nm to determine appropriate material combinations for minimizing chromatic aberration in a doublet. Based on the results of these investigations, a prototype DUV objective lens is fabricated using a LiCaAlF6 (convex lens)SiO2 (concave lens) doublet. The objective lens has a focal length of 10 mm, working distance of 2 mm, and numerical aperture (NA) of 0.2. The objective lens is evaluated to have a chromatic aberration of about 2.8% and resolution of at least 2 μm. It is also evaluated to have a smaller spherical aberration compared with a reflective objective lens with a similar NA.

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Significant blue-shift in photoluminescence excitation spectra of Nd3+:LaF3 potential laser medium at low-temperature

Cited by 10 publications

References 19 publications

Investigation of cross luminescence in lanthanum fluoride as a potential fast-response scintillator

Investigation of cross luminescence in lanthanum fluoride as a potential fast-response scintillator

Luminescence Properties of Nd³⁺‐Doped AlF₃‐Based Fluoride Glass in the Vacuum Ultraviolet Region

Achromatic Deep Ultraviolet Lens Using Novel Optical Materials

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Significant blue-shift in photoluminescence excitation spectra of Nd3+:LaF3 potential laser medium at low-temperature

Cited by 10 publications

References 19 publications

Investigation of cross luminescence in lanthanum fluoride as a potential fast-response scintillator

Investigation of cross luminescence in lanthanum fluoride as a potential fast-response scintillator

Luminescence Properties of Nd3+‐Doped AlF3‐Based Fluoride Glass in the Vacuum Ultraviolet Region

Achromatic Deep Ultraviolet Lens Using Novel Optical Materials

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Product

Resources

About

Luminescence Properties of Nd³⁺‐Doped AlF₃‐Based Fluoride Glass in the Vacuum Ultraviolet Region