BROWSE

Related Researcher

Author's Photo

Kim, Youngsik
YK Research
Research Interests
  • Ionic conducting ceramic electrolyte membranes, energy conversion and storage materials and devices

ITEM VIEW & DOWNLOAD

Synthesis of the thioborate crystal ZnxBa2B2S5+x (X not approximate to 0.2) for second order nonlinear optical applications

Cited 13 times inthomson ciCited 13 times inthomson ci
Title
Synthesis of the thioborate crystal ZnxBa2B2S5+x (X not approximate to 0.2) for second order nonlinear optical applications
Author
Kim, YoungsikMartin, SWOk, KMHalasyamani, PS
Keywords
Absorption edge; Conjugated orbitals; Covalent bonds; Electron polarization
Issue Date
2005-04
Publisher
AMER CHEMICAL SOC
Citation
CHEMISTRY OF MATERIALS, v.17, no.8, pp.2046 - 2051
Abstract
Thioborate materials have been considered for novel infrared nonlinear optical (NLO) materials having large optical nonlinear properties combined with favorable laser damage thresholds and wide transmission ranges from the visible to the mid-infrared regions. In this work, known and new thioborate materials have been investigated that have the potential to overcome the low laser damage thresholds of the NLO chalcopyrite sulfide materials such as AgGaSa without losing their large nonlinear properties and wide transmission ranges. A new thioborate phase, polycrystalline Zn xBa 2B 2S 5+x (x ≈ 0.2), has been prepared by the reaction of the metal sulfides and B 2S 3 glass in carbon crucibles sealed inside evacuated silica tubes. It crystallizes in the tetragonal system with unit cell parameters of a = 4.762(4) A and c = 24.020(7) A and is based on isolated (BS 3) 3- structural units. The second harmonic generation (SHG) efficiency determined on powders of Zn xBa 2B 2S 5+x (x ≈ 0.2) is ∼50 times larger than that of α-SiO 2. The infrared spectrum shows transparency from 2.5 to 10 μm with absorption bands around 12 μm related to the vibration modes of (BS 3) 3- units. The UV-visible spectrum shows that it is transparent in the visible region down to ∼350 nm, which is a large improvement over the absorption edge of AgGaS 2 at 490 nm.
URI
Go to Link
DOI
10.1021/cm0483083
ISSN
0897-4756
Appears in Collections:
ECHE_Journal Papers
Files in This Item:
2-s2.0-17644392070.pdf Download

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qrcode

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU