Time-resolved single photon spectroscopy through a single optical fibre for miniaturised medical probe design
Time-resolved single photon spectroscopy through a single optical fibre for miniaturised medical probe design
复制标题
通过单光纤的时间分辨单光子光谱,用于小型化医疗探头设计
DOI:
10.1117/12.2307334
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Tanner M
中科院分区:
文献类型:
--
作者:
Tanner M
We present a spectroscopic system and an optical fibre probe which enable the full exploitation of the temporal evolution and spectral information of a weak Raman signal against background fluorescence and intrinsic fibre Raman. The system consists of a single multimode fibre and a CMOS single-photon avalanche diode (SPAD) line sensor capable of resolving and histogramming the arrival times of photons for 256 pixels simultaneously, offering improved signal to background compared to a non-time resolved measurement modality. The capabilities of the system are tested for intrinsic Raman standards such as cyclohexane and for pH sensing with functionalised gold nanoshells exploiting surface enhanced Raman scattering (SERS). The nanoshells are functionalised with the pH responsive 4-mercaptobenzoic acid (MBA) enabling demonstration of wide range pH sensing with low excitation power (< 1 mW) and short acquisition times (10 s), achieving a measurement precision of ± 0.07 pH units.
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DOI:
10.23919/vlsic.2017.8008513
发表时间:
2017
期刊:
2017 Symposium on VLSI Circuits
影响因子:
--
作者:
A. Erdogan;R. Walker;N. Finlayson;N. Krstajić;Gareth O. S. Williams;R. Henderson
通讯作者:
R. Henderson
影响因子:
10.8
作者:
Bishnoi, Sandra W.;Rozell, Christopher J.;Halas, Naomi J.
通讯作者:
Halas, Naomi J.
影响因子:
3.8
作者:
Dyer, Shellee D.;Tanner, Michael G.;Nam, Sae Woo
通讯作者:
Nam, Sae Woo
DOI:
--
发表时间:
2018
期刊:
影响因子:
--
作者:
T. Craven;T. Walsh;K. Dhaliwal
通讯作者:
K. Dhaliwal