20th anniversary seal20th anniversary seal20th anniversary seal

Thulium-doped Yttrium Lithium Fluoride

Linear Formula:



Tm-doped Yttrium Lithium Fluoride
Pricing > SDS > Data Sheet >

Thulium-doped Yttrium Lithium Fluoride Properties



Melting Point

1075 °C

Boiling Point



7.27 g/cm3

Crystal Phase / Structure


Thermal Conductivity

0.6 W/cm·K

Thulium-doped Yttrium Lithium Fluoride Health & Safety Information

Signal Word N/A
Hazard Statements N/A
Hazard Codes N/A
Transport Information N/A

About Thulium-doped Yttrium Lithium Fluoride

Thulium-doped Yttrium Lithium Fluoride (Tm:YLF) is a crystalline material composed of Yttrium Lithium Fluoride (YLF) doped with thulium atoms and is used in optics and solid-state single crystal laser rods. Tm:YLF is generally immediately available in most volumes. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available, as is additional research, technical and safety (MSDS) data. Please contact us for information on lead time and pricing above.

Thulium-doped Yttrium Lithium Fluoride Synonyms

Tm:YLF, Tm:LiYF4, LiYF4:Tm3+

Thulium-doped Yttrium Lithium Fluoride Chemical Identifiers

Linear Formula


Packaging Specifications

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Safety Data Sheet (SDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes, and 36,000 lb. tanker trucks.

Related Elements

See more Yttrium products. Yttrium (atomic symbol: Y, atomic number: 39) is a Block D, Group 3, Period 5 element with an atomic weight of 88.90585. Yttrium Bohr ModelThe number of electrons in each of yttrium's shells is [2, 8, 18, 9, 2] and its electron configuration is [Kr] 4d1 5s2. The yttrium atom has a radius of 180 pm and a Van der Waals radius of 219 pm. Yttrium was discovered by Johann Gadolin in 1794 and first isolated by Carl Gustav Mosander in 1840. In its elemental form, Yttrium has a silvery white metallic appearance. Yttrium has the highest thermodynamic affinity for oxygen of any element. Elemental YttriumYttrium is not found in nature as a free element and is almost always found combined with the lanthanides in rare earth minerals. While not part of the rare earth series, it resembles the heavy rare earths which are sometimes referred to as the "yttrics" for this reason. Another unique characteristic derives from its ability to form crystals with useful properties. The name yttrium originated from a Swedish village near Vaxholm called Yttbery where it was discovered.

Lithium Bohr ModelSee more Lithium products. Lithium (atomic symbol: Li, atomic number: 3) is a Block S, Group 1, Period 2 element with an atomic weight of 6.94. The number of electrons in each of Lithium's shells is [2, 1] and its electron configuration is [He] 2s1. The lithium atom has a radius of 152 pm and a Van der Waals radius of 181 pm. Lithium was discovered by Johann Arvedson in 1817 and first isolated by William Thomas Brande in 1821. The origin of the name Lithium comes from the Greek wordlithose which means "stone." Lithium is a member of the alkali group of metals. It has the highest specific heat and electrochemical potential of any element on the period table and the lowest density of any elements that are solid at room temperature. Elemental LithiumCompared to other metals, it has one of the lowest boiling points. In its elemental form, lithium is soft enough to cut with a knife its silvery white appearance quickly darkens when exposed to air. Because of its high reactivity, elemental lithium does not occur in nature. Lithium is the key component of lithium-ion battery technology, which is becoming increasingly more prevalent in electronics.

See more Thulium products. Thulium (atomic symbol: Tm, atomic number: 69) is a Block F, Group 3, Period 6 element with an atomic weight of 168.93421. Thulium Bohr ModelThe number of electrons in each of Thulium's shells is [2, 8, 18, 31, 8, 2] and its electron configuration is [Xe]4f136s2. The thulium atom has a radius of 176 pm and a Van der Waals radius of 227 pm.Elemental Thulium Picture In its elemental form, thulium has a silvery-gray appearance. Thulium is representative of the other lanthanides (rare earths) and similar in chemistry to yttrium. It is the least abundant of the rare earth elements. Thulium emits blue upon excitation, and is used in flat panel screens that depend critically on bright blue emitters. Thulium was discovered and first isolated by Per Teodor Cleve in 1879. It is named after "Thule," which is the ancient name of Scandinavia.

Fluorine is a Block P, Group 17, Period 2 element. Its electron configuration is [He]2s22p5. The fluorine atom has a covalent radius of 64 pm and its Van der Waals radius is 135 pm. In its elemental form, CAS 7782-41-4, fluorine gas has a pale yellow appearance. Fluorine was discovered by André-Marie Ampère in 1810. It was first isolated by Henri Moissan in 1886.

Recent Research

Upconversion color tuning in Ce(3+)-doped LiYF4:Yb(3+)/Ho(3+)@LiYF4 nanoparticles towards ratiometric fluorescence detection of chromium(III)., Liu, Shijiang, Li Yangjie, Zhang Cheng, Yang Liang, Zhao Tingting, Zhang Ruilong, and Jiang Changlong , J Colloid Interface Sci, 2017 May 01, Volume 493, p.10-16, (2017)

Thulium fiber pumped tunable Ho:CaF2 laser., Němec, Michal, Šulc Jan, Jelínek Michal, Kubeček Václav, Jelínková Helena, Doroshenko Maxim E., Alimov Olimkhon K., Konyushkin Vasilii A., Nakladov Andrei N., and Osiko Vyatcheslav V. , Opt Lett, 2017 May 01, Volume 42, Issue 9, p.1852-1855, (2017)

Tunable passively Q-switched thulium-fluoride fiber laser in the S+/S band (1450.0 to 1512.0  nm) region using a single-walled carbon-nanotube-based saturable absorber., Ahmad, H, Reduan S A., Zulkifli A Z., and Tiu Z C. , Appl Opt, 2017 May 01, Volume 56, Issue 13, p.3841-3847, (2017)

Optical properties of lithium terbium fluoride and implications for performance in high power lasers., Zelmon, David E., Erdman Emily C., Stevens Kevin T., Foundos Greg, Kim Joo Ro, and Brady Allen , Appl Opt, 2016 Feb 1, Volume 55, Issue 4, p.834-7, (2016)

Sulfonic Acid- and Lithium Sulfonate-Grafted Poly(Vinylidene Fluoride) Electrospun Mats As Ionic Liquid Host for Electrochromic Device and Lithium-Ion Battery., Zhou, Rui, Liu Wanshuang, Leong Yew Wei, Xu Jianwei, and Lu Xuehong , ACS Appl Mater Interfaces, 2015 Aug 5, Volume 7, Issue 30, p.16548-57, (2015)

Spectroscopy and laser operation of Sm(3+)-doped lithium lutetium tetrafluoride (LiLuF(4)) and strontium hexaaluminate (SrAl(12)O(19))., Marzahl, Daniel-Timo, Metz Philip Werner, Kränkel Christian, and Huber Günter , Opt Express, 2015 Aug 10, Volume 23, Issue 16, p.21118-27, (2015)

Carbon Nanohorns Carried Iron Fluoride Nanocomposite with ultrahigh rate lithium ion storage properties., Fan, Lishuang, Li Bingjiang, Zhang Naiqing, and Sun Kening , Sci Rep, 2015, Volume 5, p.12154, (2015)

Interferometric measurement of the temperature coefficient of the refractive index dn/dT and the coefficient of thermal expansion of Pr:YLF laser crystals., Kazasidis, Orestis S., and Wittrock Ulrich , Opt Express, 2014 Dec 15, Volume 22, Issue 25, p.30683-96, (2014)

Intense 2.7μm emission in Er(3+) doped zinc fluoride glass., Huang, Feifei, Guo Yanyan, Tian Ying, Xu Shiqing, and Zhang Junjie , Spectrochim Acta A Mol Biomol Spectrosc, 2017 May 15, Volume 179, p.42-45, (2017)


June 23, 2017
Los Angeles, CA
Each business day American Elements' scientists & engineers post their choice for the most exciting materials science news of the day

Magnetic space tug could target dead satellites