Coherent spectroscopy of near-infrared materials for photonics

2019 ◽  
Author(s):  
Ulrike Woggon
Keyword(s):  
Near Infrared ◽  
Coherent Spectroscopy ◽  
Infrared Materials

scholarly journals Kinetically Controlled Self-Assembly of Phthalocyanine–Peptide Conjugate Nanofibrils Enabling Superlarge Redshifted Absorption

CCS Chemistry ◽  
2019 ◽  
Vol 1 (2) ◽  
pp. 173-180 ◽  
Author(s):  
Luyang Zhao ◽  
Shukun Li ◽  
Yamei Liu ◽  
Ruirui Xing ◽  
Xuehai Yan
Keyword(s):  
Self Assembly ◽  
Near Infrared ◽  
Supramolecular Assembly ◽  
Great Promise ◽  
Aggregation State ◽  
Kinetically Controlled ◽  
A Charge ◽  
Infrared Materials ◽  
Absorption Redshift ◽  
Transfer State

Supramolecular assembly could in principle lead to redshifted absorption through J-aggregation of chromophores, which would be a highly promising method for achieving near-infrared materials with improved functionality and flexibility. To effectively enhance the material functionalities, one of the great challenges remaining is to achieve an aggregation state with a redshift larger than 100 nm. Conventional assemblies that are mostly thermodynamically controlled have a limited redshifted absorption of less than 30 nm. In this work, using a model phthalocyanine–peptide conjugate compound, we achieved the first fabrication of phthalocyanine-based near-infrared materials with a superlarge absorption redshift of 105 nm by a kinetically controlled self-assembly strategy. In this kinetically controlled self-assembly process, sufficient rearrangement of intermolecular aggregates to an ordered structure is revealed to be crucial to facilitate the formation of nanofibrils instead of nanoparticles, which are formed via a general rapid self-assembly pathway under thermodynamic control. The superlarge redshift in the absorbance of assembled nanofibrils originates from the orderly stacked phthalocyanine chromophores, which enable a charge transfer state through more effective intermolecular orbital overlapping. The kinetically controlled J-aggregation state of the phthalocyanine–peptide conjugate with superlarge redshifted absorption not only opens an unprecedented route toward novel near-infrared phthalocyanine materials but also holds great promise for revealing general design principles for various organic dye materials.

Advances in Organic Near-Infrared Materials and Emerging Applications

2016 ◽  
Vol 16 (3) ◽  
pp. 1531-1548 ◽  
Author(s):  
Ji Qi ◽  
Wenqiang Qiao ◽  
Zhi Yuan Wang
Keyword(s):  
Near Infrared ◽  
Infrared Materials

Macroporous photonic crystal-based anti-ultraviolet and anti-near-infrared materials by doctor blade coating

2016 ◽  
Vol 108 (7) ◽  
pp. 071906 ◽  
Author(s):  
Chang-Yun Cai ◽  
Kun-Yi Andrew Lin ◽  
Ying-Chu Chen ◽  
Hongta Yang
Keyword(s):  
Photonic Crystal ◽  
Near Infrared ◽  
Doctor Blade ◽  
Infrared Materials ◽  
Blade Coating

scholarly journals Designing a super broadband near infrared material Mg3Y2Ge3O12:Cr3+ using cation inversion for future light sources

RSC Advances ◽  
2020 ◽  
Vol 10 (32) ◽  
pp. 19106-19116
Author(s):  
Xiangyu Meng ◽  
Xiaoshuai Zhang ◽  
Xueli Shi ◽  
Keliang Qiu ◽  
Zhijun Wang ◽  
...  
Keyword(s):  
Emission Band ◽  
Near Infrared ◽  
Broad Emission Band ◽  
Light Sources ◽  
Broad Emission ◽  
Infrared Materials

A series of broad emission band near infrared materials Mg3Y2Ge3O12:Cr3+ (650–1200 nm) was prepared based on cation inversion.

Spectroscopic study of V doped Hg0.018Cd0.981Mn0.001Te bulk crystals as near-infrared materials for optical applications

2009 ◽  
Vol 95 (11) ◽  
pp. 112109 ◽  
Author(s):  
Yu. P. Gnatenko ◽  
P. M. Bukivskij ◽  
Yu. P. Piryatinski ◽  
I. O. Faryna ◽  
O. A. Shigiltchoff ◽  
...  
Keyword(s):  
Spectroscopic Study ◽  
Near Infrared ◽  
Bulk Crystals ◽  
Optical Applications ◽  
Infrared Materials

scholarly journals Achieving the potential multifunctional near-infrared materials Ca3In2−xGaxGe3O12:Cr3+ using a solid state method

RSC Advances ◽  
2021 ◽  
Vol 11 (17) ◽  
pp. 10043-10053
Author(s):  
Lingwei Cao ◽  
Panlai Li ◽  
Jia Cui ◽  
Xuejiao Wang ◽  
Yao Yao ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Solid State ◽  
Food Analysis ◽  
Near Infrared ◽  
Fast Response ◽  
Human Detection ◽  
Solid State Method ◽  
Non Invasive ◽  
State Method ◽  
Infrared Materials

Near-infrared spectroscopy is developing rapidly in the fields of human detection and food analysis due to its fast response and non-invasive characteristics.

Tunable two-photon absorption near-infrared materials containing different electron-donors and a π-bridge center with applications in bioimaging in live cells

2015 ◽  
Vol 3 (21) ◽  
pp. 5580-5588 ◽  
Author(s):  
Ming Kong ◽  
Ting Wang ◽  
Xiaohe Tian ◽  
Fang Wang ◽  
Yanqiu Liu ◽  
...  
Keyword(s):  
Near Infrared ◽  
Electron Donors ◽  
Photon Absorption ◽  
Live Cells ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Infrared Materials

The 2PA can be adjusted by the electron donating group and π-bridge center among the dyes.

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