Stimulated Raman scattering in natural crystals of fluorapatite, Ca₅(PO₄)₃F

Autor(en)

Alexander A. Kaminskii, Ladislav Bohaty, Oliver Lux, Hanjo Rhee, Hans-Joachim Eichler, Eugen Libowitzky, Reiner Kleinschrodt, Hitoki Yoneda, Akira Shirakawa, Petra Becker

Abstrakt

Hexagonal Ca5(PO4)3F, known as natural crystal fluorapatite and oldest host-crystal for Ln3+-lasant ions, is presented as a Raman-active material. High-order Raman-induced (3)-nonlinear processes are discovered in natural crystals of fluorapatite under picosecond pumping at 1.064 µm and 0.532 µm wavelength. A multitude of Stokes and anti-Stokes components is generated in the UV, visible and near-IR spectral region by stimulated Raman scattering (SRS) and Raman four-wave mixing (FWHM), resulting in a frequency comb with a width of 520 THz. The spectral lines are identified and attributed to the 1(Ag) vibration mode of the tetrahedral [PO4] units which is related to a Raman shift of SRS ca. 965 cm-1. The first Stokes steady-state Raman gain coeff. in the near-IR spectral range is estd. to be >0.38 cm·GW-1. Finally, a short review of SRS-promoting vibration modes and obsd. (3)- nonlinear interactions in all known SRS-active natural crystals (minerals) is given.

Organisation(en)

Institut für Mineralogie und Kristallographie

Externe Organisation(en)

Technische Universität Berlin, Universität zu Köln, The University of Electro-Communications, Russian Academy of Sciences

Journal

Laser & Photonics Reviews

Band

10

Seiten

814-825

Anzahl der Seiten

12

ISSN

1863-8880

DOI

https://doi.org/10.1002/lpor.201600100

Publikationsdatum

09-2016

Peer-reviewed

Ja

ÖFOS 2012

104026 Spektroskopie, 105116 Mineralogie

Schlagwörter

ASJC Scopus Sachgebiete

Electronic, Optical and Magnetic Materials, Condensed Matter Physics, Atomic and Molecular Physics, and Optics

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/8916f945-3f06-4c17-afc0-570c6f8a2587