Higher-order modulations of fs laser pulses for GHz frequency domain photon migration system

Huang Yi Lin, Nanyu Cheng, Sheng Hao Tseng, Ming Che Chan

研究成果: Article同行評審

2 引文 斯高帕斯(Scopus)

摘要

Except the fundamental modulation frequency, by higher-orderharmonic modulations of mode-locked laser pulses and a simple frequency demodulation circuit, a novel approach to GHz frequency-domain-photonmigration (FDPM) system was reported. With this novel approach, a wideband modulation frequency comb is available without any external modulation devices and the only electronics to extract the optical attenuation and phase properties at a selected modulation frequency in FDPM systems are good mixers and lock-in devices. This approach greatly expands the frequency range that could be achieved by conventional FDPM systems and suggests that our system could extract much more information from biological tissues than the conventional FDPM systems. Moreover, this demonstration will be beneficial for discerning the minute change of tissue properties.

原文English
頁(從 - 到)3950-3958
頁數9
期刊Optics Express
22
發行號4
DOIs
出版狀態Published - 2014 2月 24

All Science Journal Classification (ASJC) codes

  • 原子與分子物理與光學

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