Ultrafast fluorescence polarization spectroscopy of near infrared dye in picosecond dynamic range: model and simulation

2014 ◽  
Author(s):  
Yang Pu
Keyword(s):  
Fluorescence Polarization ◽  
Near Infrared ◽  
Dynamic Range ◽  
Polarization Spectroscopy ◽  
Model And Simulation ◽  
Near Infrared Dye ◽  
Picosecond Dynamic

Exciton Dynamics in J- and H-Aggregates of a Tricarbocyanine Near-Infrared Dye

2021 ◽  
Author(s):  
Oleg P. Dimitriev ◽  
Johannes Zirzlmeier ◽  
Arjun Menon ◽  
Yuri Slominskii ◽  
Dirk M. Guldi
Keyword(s):  
Near Infrared ◽  
Exciton Dynamics ◽  
Near Infrared Dye

scholarly journals SGM-101: An innovative near-infrared dye-antibody conjugate that targets CEA for fluorescence-guided surgery

2017 ◽  
Vol 26 (2) ◽  
pp. 153-162 ◽  
Author(s):  
Marian Gutowski ◽  
Bérénice Framery ◽  
Martin C. Boonstra ◽  
Véronique Garambois ◽  
François Quenet ◽  
...  
Keyword(s):  
Near Infrared ◽  
Guided Surgery ◽  
Fluorescence Guided Surgery ◽  
Antibody Conjugate ◽  
Near Infrared Dye

Synthesis of NIR-emitting O-chelated BODIPYs fused with benzene and acenaphthylene

2014 ◽  
Vol 18 (08n09) ◽  
pp. 752-761 ◽  
Author(s):  
Tetsuo Okujima ◽  
Yoichi Shida ◽  
Keishi Ohara ◽  
Yuya Tomimori ◽  
Motoyoshi Nishioka ◽  
...  
Keyword(s):  
Near Infrared ◽  
Photophysical Properties ◽  
Fluorescence Emission ◽  
Fluorescence Measurement ◽  
Aromatic Rings ◽  
Nir Absorption ◽  
Intense Absorption ◽  
Near Infrared Dye

A series of O-chelated BODIPYs fused with aromatic rings such as benzene and acenaphthylene at β,β-positions was synthesized as a near-infrared dye. The photophysical properties were examined by UV-vis-NIR absorption and fluorescence measurement. Acenaphthylene-fused O-BODIPYs showed a intense absorption at 750–840 nm with the ε of 105 M-1.cm-1. and a fluorescence emission at 770–850 nm with the high Φ value of 0.06–0.43.

A near-infrared dye based on BODIPY for tracking morphology changes in mitochondria

2013 ◽  
Vol 49 (90) ◽  
pp. 10620 ◽  
Author(s):  
Na Jiang ◽  
Jiangli Fan ◽  
Tao Liu ◽  
Jianfang Cao ◽  
Bo Qiao ◽  
...  
Keyword(s):  
Near Infrared ◽  
Near Infrared Dye ◽  
Morphology Changes

scholarly journals Thermal Imaging Metrology Using High Dynamic Range Near-Infrared Photovoltaic-Mode Camera

Sensors ◽  
2021 ◽  
Vol 21 (18) ◽  
pp. 6151
Author(s):  
Thomas B. O. Rockett ◽  
Nicholas A. Boone ◽  
Robert D. Richards ◽  
Jon R. Willmott
Keyword(s):  
Measurement Uncertainty ◽  
Wide Temperature Range ◽  
Thermal Imaging ◽  
Near Infrared ◽  
Dynamic Range ◽  
High Dynamic Range ◽  
Thermal Camera ◽  
Temperature Range ◽  
Photovoltaic Mode ◽  
High Dynamic

The measurement of a wide temperature range in a scene requires hardware capable of high dynamic range imaging. We describe a novel near-infrared thermal imaging system operating at a wavelength of 940 nm based on a commercial photovoltaic mode high dynamic range camera and analyse its measurement uncertainty. The system is capable of measuring over an unprecedently wide temperature range; however, this comes at the cost of a reduced temperature resolution and increased uncertainty compared to a conventional CMOS camera operating in photodetective mode. Despite this, the photovoltaic mode thermal camera has an acceptable level of uncertainty for most thermal imaging applications with an NETD of 4–12 °C and a combined measurement uncertainty of approximately 1% K if a low pixel clock is used. We discuss the various sources of uncertainty and how they might be minimised to further improve the performance of the thermal camera. The thermal camera is a good choice for imaging low frame rate applications that have a wide inter-scene temperature range.

scholarly journals Doubly resonant sub-ppt photoacoustic gas detection with eight decades dynamic range

2021 ◽  
Author(s):  
Zhen Wang ◽  
Hui Zhang ◽  
Qiang Wang ◽  
Simone Borri ◽  
Iacopo Galli ◽  
...  
Keyword(s):  
Gas Sensors ◽  
Near Infrared ◽  
Dynamic Range ◽  
High Sensitivity ◽  
Fast Response ◽  
Wide Dynamic Range ◽  
Acoustic Resonators ◽  
Light Waves ◽  
Energy Environment ◽  
Small Footprint

Abstract Gas sensors with high sensitivity, wide dynamic range, high selectivity, fast response, and small footprint are desirable across a broad range of applications in energy, environment, safety, and public health. However, designing a compact gas sensor with ultra-high sensitivity and ultra-wide dynamic range remains a challenge. Laser-based photoacoustic spectroscopy (PAS) is a promising candidate to fill this gap. Herein, we report a novel method to simultaneously enhance the acoustic and light waves for PAS using integrated optical and acoustic resonators. This increases sensitivity by more than two orders of magnitude and extends the dynamic range by more than three orders of magnitude, compared with the state-of-the-art photoacoustic gas sensors. We demonstrate the concept by exploiting a near-infrared absorption line of acetylene (C2H2) at 1531.59 nm, achieving a detection limit of 0.5 parts-per-trillion (ppt), a noise equivalent absorption (NEA) of 5.7×10-13 cm-1 and a linear dynamic range of eight orders of magnitude. This study enables the realization of compact ultra-sensitive and ultra-wide-dynamic-range gas sensors in a number of different fields.

scholarly journals Optical monitoring of polymerizations in droplets with high temporal dynamic range

2020 ◽  
Vol 11 (10) ◽  
pp. 2647-2656
Author(s):  
Andrew C. Cavell ◽  
Veronica K. Krasecki ◽  
Guoping Li ◽  
Abhishek Sharma ◽  
Hao Sun ◽  
...  
Keyword(s):  
Fluorescence Polarization ◽  
Dynamic Range ◽  
Polymerization Reaction ◽  
Optical Monitoring ◽  
Polarization Anisotropy ◽  
Temporal Dynamic ◽  
Reaction Progress ◽  
Aggregation Induced Emission ◽  
Fluorescence Polarization Anisotropy

Two complementary measurements, fluorescence polarization anisotropy and aggregation-induced emission, allow for in situ optical monitoring of polymerization reaction progress in droplets across varying temporal regimes of the reaction.

Highly stable near-infrared dye conjugated cerasomes for fluorescence imaging-guided synergistic chemo-photothermal therapy of colorectal cancer

2019 ◽  
Vol 7 (7) ◽  
pp. 2873-2888 ◽  
Author(s):  
Xu Zhang ◽  
Xiaolong Liang ◽  
Xiaotu Ma ◽  
Rui Hou ◽  
Xiaoda Li ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Drug Release ◽  
Fluorescence Imaging ◽  
Photothermal Therapy ◽  
High Stability ◽  
Near Infrared ◽  
Great Promise ◽  
Near Infrared Dye

Dye-conjugated cerasome loaded with DOX exhibited high stability and controllable drug release, holding great promise in colorectal cancer photothermal chemotherapy.

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