Absorption, luminescence, and stimulated emission investigations in Lu3Al5O12-Er3+ Crystals

Kaminskiĭ, A. A.; Бутаева, Т. И.; Федоров, В. А.; Bagdasarov, Kh. S.; Պետրոսյան, Ա. Գ.

doi:10.1002/pssa.2210390222

Cited by 40 publications

(10 citation statements)

References 2 publications

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“…Also recently, Ho 3+ : Sr 5 (PO 4 ) 3 F (SFAP) crystal has been investigated as a potential saturable absorber for Q-switching of IR lasers [4]. Among various holmium activated matrix, yttrium aluminum garnet Y 3 Al 5 O 12 (YAG) and yttrium aluminum perovskite, YAlO 3 (YAP), otherwise known as yttrium orthoaluminate, doped by trivalent holmium (Ho 3+ ), are commonly employed as 2 and 3 mm laser materials [5][6][7]. The rapid growth of applications requiring visible lasers, such as full-color displays, optical data storage and biomedical instruments, have stimulated the development of lasers in the visible spectral range.…”

Section: Introductionmentioning

confidence: 99%

Emission from the high lying excited states of Ho3+ ions in YAP and YAG crystals

Malinowski¹,

Kaczkan²,

Wnuk

et al. 2004

Journal of Luminescence

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Section: Introductionmentioning

confidence: 99%

Emission from the high lying excited states of Ho3+ ions in YAP and YAG crystals

Malinowski¹,

Kaczkan²,

Wnuk

et al. 2004

Journal of Luminescence

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“…Hence, Ho 3+ -doped glasses are gaining popularity as they have many capabilities such as 2 μm emission, visible wavelength upconversion, and emission in the 800 nm band. Ho 3+ ions can produce laser emission in 2.0 and 2.9 μm ranges arising from the transitions, 5 I 7 → 5 I 8 and 5 I 6 → 5 I 8 , respectively [6][7][8]. Ho 3+ ion has several low-lying metastable levels, which can give rise to transitions at various wavelengths from infrared to ultraviolet regions.…”

Section: Introductionmentioning

confidence: 99%

Spectral Investigations on Ho3+ Doped Mixed Alkali Chloroborate Glasses

et al. 2011

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The optical absorption and emission spectra of two different Ho 3+ doped mixed alkali chloroborate glasses have been studied in the ultraviolet-visible near-infrared regions. Various spectroscopic parameters like Racah (E 1 , E 2 , and E 3 ), spin orbit (ξ 4f ), and configuration interaction (α) parameters have been calculated. From the measured spectral intensities of the various absorption bands of Ho 3+ ion, the Judd-Ofelt intensity parameters (Ω 2 , Ω 4 , and Ω 6 ) have been evaluated and covalency was studied as a function of x in the glass matrices. Using these parameters, radiative transition probabilities, radiative lifetimes, branching ratios, and integrated absorption cross-sections have been calculated and reported for certain excited states of Ho 3+ ion. From the emission spectra, stimulated emission cross-sections are determined for the emission transitions, 5 F 4 , 5 S 2 → 5 I 8 , and 5 F 5 → 5 I 8 in these two mixed alkali chloroborate glasses. An attempt has been made to throw some light on the environment of Ho 3+ ions in these glass systems by studying the variation in various spectroscopic parameters.

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“…Hence these RE-doped materials are expected to be applied in new efficient solid state lasers, for phosphors emitting in the visible spectral range, solid-state displays, detectors for the infrared spectral range or in possible other optic-electronic devices. It is well known that Ho 3+ ions can produce laser emission in the 2 and 2.9 m ranges [1][2][3][4] arising from transitions 5 I 7 → 5 I 8 and 5 I 6 → 5 I 8 , respectively. Ho 3+ ion has also several lying metastable levels, which can give rise to transitions at various wavelengths from infrared (IR) to ultraviolet (UV) region.…”

Section: Introductionmentioning

confidence: 99%