Abstract-High-speed stimulated hyperspectral Raman imaging using rapid acousto-optic delay lines

Mohammed S. Alshaykh, Chien-Sheng Liao, Oscar E. Sandoval, Gregory Gitzinger, Nicolas Forget, Daniel E. Leaird, Ji-Xin Cheng, and Andrew M. Weiner

https://www.osapublishing.org/ol/abstract.cfm?uri=ol-42-8-1548&origin=search

Stimulated Raman scattering (SRS) is a powerful, label-free imaging technique that holds significant potential for medical imaging. To allow chemical specificity and minimize spectral distortion in the imaging of live species, a high-speed multiplex SRS imaging platform is needed. By combining a spectral focusing excitation technique with a rapid acousto-optic delay line, we demonstrate a hyperspectral SRS imaging platform capable of measuring a 3-dB spectral window of ∼200  cm−1$\sim 200{\mathrm{cm}}^{-1}$ within 12.8 μs with a scan rate of 30 KHz. We present hyperspectral images of a mixture of two different microsphere polymers as well as live fungal cells mixed with human blood.

© 2017 Optical Society of America

Abstract-Cooperative In-Vivo Nano-Network Communication at Terahertz Frequencies

Qammer H. Abbasi, Ali Arshad Nasir, Ke Yang, Khalid Qaraqe, Akram Alomainy

(Submitted on 22 Mar 2017)

https://arxiv.org/abs/1703.07765

Nano devices have great potential to play a vital role in future medical diagnostics and treatment technologies because of its non-invasive nature and ability to reach delicate body sites easily as compared to conventional devices. In this paper, a novel concept of cooperative communication for in-vivo nano-network is presented to enhance the communication among these devices. The effect on the system outage probability performance is conducted for various parameters including relay lacement, number of relays, transmit power, bandwidth and carrier frequency. Results show approximately a 10-fold increase in the system outage performance whenever an additional relay is included in the cooperative network, hence show a great potential of using cooperative communication to enhance the performance of nano-network at terahertz frequencies.