Clustering engineering in tellurium-doped glass fiber for broadband optical amplification

Qi-wu, Dong; Zhang, Ke; Chen, Jingfei; Chen, Weiwei; Xing, Feng; Li, Xueliang; He, Zhixue; Qiu, Jianrong; Zhou, Shifeng

doi:10.1016/j.ceramint.2023.04.061

Cited by 4 publications

(1 citation statement)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These peaks can be ascribed to the Te‐related centers; the formation of Te nanoparticles can be ruled out because they are generally located in the lower frequency bands of ≈100 cm −1 . [ 12,14 ] Particularly, the Raman peak at 214 cm −1 originates from the Te 2 cluster and has been detected in several systems. [ 12 ] The accurate correlation of the other two Raman peaks (185 and 370 cm −1 ) with the specific Te cluster center remains unclear.…”

Section: Resultsmentioning

confidence: 99%

Subnano Te Cluster in Glass for Efficient Full‐Spectrum Conversion

Dong,

Zhang,

Huang

et al. 2023

Advanced Science

Self Cite

View full text Add to dashboard Cite

Broadband near‐infrared (NIR) photonic materials have wide applications. Although extensive studies on rare‐earth, transition‐metal, and even semiconductor‐activated materials have enabled the development of a rich NIR material pool, developing broadband and efficient photonic candidates covering the NIR I and II regions from 750 to 1500 nm has been met with limited success. Here, it is reported that a subnano Te cluster with a characteristic configuration different from that of the ion state may fill the aforementioned gap. Further, a strategy is proposed for the in situ generation and stabilization of Te clusters by tuning the cluster evolution in glass. A novel active photonic glass embedded with a Te cluster is fabricated; it exhibits intense and broadband short‐wave NIR luminescence with a central wavelength at 1030 nm and a bandwidth exceeding 330 nm. Interestingly, the glass exhibited a full visible‐spectrum conversion ability from 300 to 800 nm. The application of this unique broadband excitation feature for night vision and tissue penetration is demonstrated using a smartphone as the excitation source. These findings demonstrate a fundamental principle of cluster design in glass for creating new properties and provide a new direction for developing novel cluster‐derived functional composite materials.

show abstract

Section: Resultsmentioning

confidence: 99%

Subnano Te Cluster in Glass for Efficient Full‐Spectrum Conversion

Dong,

Zhang,

Huang

et al. 2023

Advanced Science

Self Cite

View full text Add to dashboard Cite

show abstract

Te Cluster Engineering for Tunable Optical Response

Dong,

Huang,

Chen

et al. 2024

Adv Funct Materials

View full text Add to dashboard Cite

The construction of active materials with controllable optical response facilitates the development of advanced photonic devices. However, the achievement of robust active materials with wide wavelength tunable and broadband emission remains a great challenge, mainly due to the fixed energy levels of conventional active dopants and limited inhomogeneous broadening in common hosts. Here, the study proposes that the cluster in the mesoscopic scale of ≈1 nm may break this bottleneck issue and demonstrate a strategy for the management of photon emission by engineering the cluster evolution. The amorphous glass as the host to tailor the characteristic configuration of Te clusters from 1 to 2 nm by control of the topological structures in glass is employed. Impressively, it presents a distinct optical response totally different from the conventional active centers and this enables to construct of active photonic glass with continuously tunable emission from 888 to 1064 nm. More importantly, Te cluster‐activated photonic glass fibers are fabricated and the broadband on‐off gain is successfully achieved. Furthermore, benefiting from the unique tunable emission, novel near‐infrared devices are constructed and their application in imaging is demonstrated. The approach of cluster engineering mediated tunable optical response is believed to bring new opportunities for developing advanced photonic devices.

show abstract

Main Group Elements Activated Near‐Infrared Photonic Materials

Dong,

Feng,

Qiu

et al. 2024

Laser & Photonics Reviews

View full text Add to dashboard Cite

Near‐infrared (NIR) photonic materials find extensive applications across important fields such as telecommunications, laser radar, and atmospheric remote sensing. In particular, photonic materials activated by main group elements, which exhibit unique spectral features including ultra‐broadband tunable luminescence and long lifetime, have become rising stars in NIR emitting dopants. In this review, the energy level characteristics of the p‐electrons to gain insight into the fundamentals of the NIR optical response from the main group elements are first introduced. Next, the NIR luminescence properties of the main group elements are discussed. Then, the strategy for the design of main group elements activated materials with the desired properties based on local chemical environment engineering is proposed. In addition, recent advances in the applications of main group element (excluding bismuth) activated materials are highlighted. Furthermore, the key scientific issues that urgently need to be solved for such materials, such as the detailed luminescence mechanism are highlighted. Anticipation also extends to the future research trends in this exciting field, including the ways for enhancing luminescence efficiency and extending spectral region, and the efforts for implementing these advancements in novel cutting‐edge technologies like photovoltaics and biomedicine.

show abstract

Clustering engineering in tellurium-doped glass fiber for broadband optical amplification

Cited by 4 publications

References 47 publications

Subnano Te Cluster in Glass for Efficient Full‐Spectrum Conversion

Subnano Te Cluster in Glass for Efficient Full‐Spectrum Conversion

Te Cluster Engineering for Tunable Optical Response

Main Group Elements Activated Near‐Infrared Photonic Materials

Contact Info

Product

Resources

About