Enhanced 2.7- and 2.9-μm emissions in Er{sup 3+}/Ho{sup 3+} doped fluoride glasses sensitized by Pr{sup 3+} ions

Journal Article · Fri Apr 15 04:00:00 EDT 2016 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2015.12.004· OSTI ID:22581487

Tian, Ying ^[1]; Wei, Tao ^[2]; Jing, Xufeng ^[3]; Zhang, Junjie ^[1]; Xu, Shiqing ^[1]

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1. College of Materials Science and Engineering, China Jiliang University, Hangzhou 310018 (China)
2. Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 (China)
3. Institute of Optoelectronic Technology, China Jiliang University, Hangzhou 310018 (China)

Highlights: • Enhanced 2.7 and 2.9 μm emissions were observed in fluoride glass. • Energy transfer mechanism among Er{sup 3+}, Ho{sup 3+} and Pr{sup 3+} was investigated. • High emission cross sections at 2.7- and 2.9-μm were obtained. - Abstract: In this report, Er{sup 3+}/Ho{sup 3+}/Pr{sup 3+} tri-doped fluoride glass was prepared. The enhancement of 2.7 and 2.9 μm emissions from Er{sup 3+}/Ho{sup 3+}doped system were achieved successfully after the addition of Pr{sup 3+}. The combination of low OH{sup −} concentration, low maximum phonon energy and high mid-infrared transmittance is beneficial to the realization of mid-infrared emissions. The energy transfer mechanism among Er{sup 3+}, Ho{sup 3+} and Pr{sup 3+} was investigated. The decay profiles of several levels were measured to further examine the enhanced mid-infrared emissions. Moreover, high stimulated emission cross sections at 2.7- and 2.9 μm (1.08 × 10{sup −20} cm{sup 2} and 2.0 × 10{sup −20} cm{sup 2}, respectively) were determined. Er{sup 3+}/Ho{sup 3+}/Pr{sup 3+} tri-doped fluoride glass might provide a new choice for mid-infrared laser.

• OSTI ID: 22581487
• Journal Information: Materials Research Bulletin, Journal Name: Materials Research Bulletin Vol. 76; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ABSORPTION SPECTROSCOPY
CONCENTRATION RATIO
CROSS SECTIONS
DOPED MATERIALS
ENERGY TRANSFER
ERBIUM IONS
FLUORIDES
GLASS
HOLMIUM IONS
INFRARED SPECTRA
INTERMEDIATE INFRARED RADIATION
LUMINESCENCE
PHONONS
PRASEODYMIUM IONS
STIMULATED EMISSION