Structure · dataset · 2022
Date for paper"BaGeO3: A Mid-IR Transparent Crystal with Superstrong Raman Response"
Listed in ScienceDB
Stimulated Raman scattering processes based on Raman crystals offer a simple and effective method to generate mid-IR lasers.
Description
However, currently available mid-IR Raman crystals are extremely scarce. Herein, a new type of mid-IR Raman crystal, BaGeO3, is reported.
It crystallizes in the monoclinic space group C2/c with Ba2+ cations and [Ge3O9](6-) rings as basic building units and features high transparency from 2.5 to 5.5 mu m and a Raman response larger than that of diamond. The BaGeO3 crystal has 45 IR-active modes (22A(u) + 23B(u)) and 42 Raman-active modes (20A(g) + 22B(g)). The wide mid-IR transparent window is attributed to the low phonon energy of the second-order IR-active A(u) circle times B-g mode.
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The strongest Raman band, located at 799 cm(-1), arises from the symmetrically stretching vibration of the [Ge3O9](6-) extra-ring Ge-O bonds. The findings provide new insights into the crystallographic and Raman spectroscopic characteristics of high-performance mid-IR Raman crystals.
Links
Where it is published
- DOI doi.org/10.57760/sciencedb.02573 ↗
DOI / persistent id · from scidb cn
Catalogue records · 1
- OAI-PMH record scidb.cn/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=10.57760%2… ↗
metadata API · from scidb cn
Topics
- From keywords
- Earth & Environmental Science · Engineering · Humanities · Life Sciences · Materials Science · Social Science
Provenance · 1 source records, 10 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| ScienceDB | 10.57760/sciencedb.02573 | 12 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| concepts[field].local:field:earth-environmental | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:engineering | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:humanities | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:materials-science | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:social-science | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| description | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/description |
| license_text | source · scidb cn | connector:scidb_cn@1.0.0 | |
| publication_date | source · scidb cn | connector:scidb_cn@1.0.0 | |
| title | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/title |