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  • NeuroPG: open source software for optical pattern generation and data acquisition 

    Avants, Benjamin W.; Murphy, Daniel B.; Dapello, Joel A.; Robinson, Jacob T. (2015)
    Patterned illumination using a digital micromirror device (DMD) is a powerful tool for optogenetics. Compared to a scanning laser, DMDs are inexpensive and can easily create complex illumination patterns. Combining these ...
  • Diameter dependence of TO phonon frequencies and the Kohn anomaly in armchair single-wall carbon nanotubes 

    Telg, Hagen; Hároz, Erik H.; Duque, Juan G.; Tu, Xiaomin; Khripin, Constantine Y.; Fagan, Jeffrey A.; Zheng, Ming; Kono, Junichiro; Doorn, Stephen K. (2014)
    We present resonant Raman scattering experiments on nanotube samples enriched in metallic armchair single-wall carbon nanotubes (SWCNTs). We establish the transverse optical (ATO) phonon frequency for the (5,5) through ...
  • Electrically tunable hot-silicon terahertz attenuator 

    Wang, Minjie; Vajtai, Robert; Ajayan, Pulickel M.; Kono, Junichiro (2014)
    We have developed a continuously tunable, broadband terahertz attenuator with a transmission tuning range greater than 103. Attenuation tuning is achieved electrically, by simply changing the DC voltage applied to a heating ...
  • Ternary CuIn7Se11: Towards Ultra-Thin Layered Photodetectors and Photovoltaic Devices 

    Lei, Sidong; Sobhani, Ali; Wen, Fangfang; George, Antony; Wang, Qizhong; Huang, Yihan; Dong, Pei; Li, Bo; Najmaei, Sina; Bellah, James; Gupta, Gautam; Mohite, Aditya D.; Ge, Liehui; Lou, Jun; Halas, Naomi J.; Vajtai, Robert; Ajayan, Pulickel (2014)
    2D materials have been widely studied over the past decade for their potential applications in electronics and optoelectronics. In these materials, elemental composition plays a critical role in defining their physical ...
  • Efficient Modulation of 1.55 μm Radiation with Gated Graphene on a Silicon Microring Resonator 

    Qiu, Ciyuan; Gao, Weilu; Vajtai, Robert; Ajayan, Pulickel M.; Kono, Junichiro; Xu, Qianfan (2014)
    The gate-controllability of the Fermi-edge onset of interband absorption in graphene can be utilized to modulate near-infrared radiation in the telecommunication band. However, a high modulation efficiency has not been ...