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High Efficiency Infrared-to-Visible Upconversion Emission in Er 3+ ,Yb 3+ , and Ho 3+ Codoped Tellurite Glasses
| Content Provider | Scilit |
|---|---|
| Author | Shi-Xun, Dai Xiang-Hua, Zhang Tie-Feng, Xu Xiang, Shen Xun-Shi, Wang Qiu-Hua, Nie |
| Copyright Year | 2006 |
| Description | Journal: Chinese Physics Letters A novel method of codoping the $Er^{3+}$, $Yb^{3+}$, and $Ho^{3+}$ ions in tellurite glasses is demonstrated to obtain a high efficiency of infrared-to-visible upconversion. Three intense emission bands observed in $Er^{3+}$, $Yb^{3+}$, and $Ho^{3+}$ codoped tellurite glasses centred at 525, 547, and 657 nm correspond to $Er^{3+}$:$ $^{2}H_{11/2}→^{4}$I_{15/2}$, $Er^{3+}$:$ $^{4}S_{3/2}→^{4}I_{15/2}$+Ho^{3+}$:$ $^{5}S_{2}(^{5}F_{4})→^{5}$I_{8}$, and $Er^{3+}$:$ $^{4}S_{3/2}→^{4}I_{15/2}$+Ho^{3+}$:$ $^{5}F_{5}→^{5}$I_{8}$ transitions, respectively. No visible upconversion quenching phenomenon is observed when three rare-earth ions are codoped together in tellurite glasses. In contrast, the upconversion intensity of red and green emissions in $Er^{3+}$, $Yb^{3+}$, and $Ho^{3+}$ codoped glasses is enhanced largely when compared with $Er^{3+}/Yb^{3+}$-codoped glasses. The dependence of upconversion intensities on excitation power and the possible upconversion mechanisms are evaluated. The three emissions are based on two-photon absorption processes. |
| Related Links | http://iopscience.iop.org/article/10.1088/0256-307X/23/7/043/pdf |
| Ending Page | 1812 |
| Page Count | 3 |
| Starting Page | 1810 |
| ISSN | 0256307X |
| e-ISSN | 17413540 |
| DOI | 10.1088/0256-307x/23/7/043 |
| Journal | Chinese Physics Letters |
| Issue Number | 7 |
| Volume Number | 23 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2006-06-28 |
| Access Restriction | Open |
| Subject Keyword | Journal: Chinese Physics Letters Inorganic Chemistry Tellurite Glasses |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physics and Astronomy |
