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DTSTART;TZID=America/New_York:20211119T090000
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UID:29443-1637312400-1637316000@coe.northeastern.edu
SUMMARY:ECE PhD Proposal Review: Ziqiang Cai
DESCRIPTION:PhD Proposal Review: Near-infrared Optical Modulation by Hybrid Graphene Metasurfaces \nZiqiang Cai \nLocation: Zoom Link \nAbstract: The field of metasurfaces has emerged as one of the most promising frontiers in optical research due to the compact footprint and flexibility in light manipulation. To further advance the practical applications of metasurfaces\, tunable or reconfigurable metasurfaces are highly desirable. One approach is to utilize graphene by taking advantage of its tunable optical properties upon electrical bias. Graphene metasurfaces have been extensively studied in many applications\, including polarization tuning\, phase tuning\, photodetectors\, chemical sensing\, tunable lens\, etc. However\, the working wavelengths of the reported graphene metasurfaces are limited in mid-infrared and terahertz spectra.\nIn this proposal review\, I will discuss a graphene metasurface that can push the working wavelength into the near-infrared region (≤ 3.0 µm). The device combines graphene with plasmonic structures made of gold to enhance the interband transition of graphene\, resulting in decent tunability at near-infrared wavelengths. The tuning process of our graphene metasurface shows distinct differences in comparison with the graphene metasurfaces operating in the mid-infrared or terahertz spectra\, which can be accurately predicted by both theory and simulation. The measured results show a reflection modulation ΔR of about 10% and a modulation depth ΔR/Rmax of 17% at 2.42 µm.\nFinally\, by using an anisotropic plasmonic structure\, our hybrid graphene metasurface can simultaneously operate in the near-infrared and mid-infrared spectra. The measured modulation depth is 18.2% at 2.30 µm and 24.7% at 5.67 µm. Our research substantially broadens the working wavelength of graphene metasurfaces\, and manifest potential applications in near-infrared electro-optic modulators\, reconfigurable lenses\, and polarization modulators.
URL:https://coe.northeastern.edu/event/ece-phd-proposal-review-ziqiang-cai/
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DTSTART;TZID=America/New_York:20211119T120000
DTEND;TZID=America/New_York:20211119T130000
DTSTAMP:20260514T164339
CREATED:20211118T145449Z
LAST-MODIFIED:20211118T145449Z
UID:29450-1637323200-1637326800@coe.northeastern.edu
SUMMARY:ChE Seminar Series: Unwinding Anxiety: An App Based Mindfulness Program
DESCRIPTION:ChE Seminar Series Presents: \nDr. Nancy Lasson\, DO\, FACP\, DipACLM \nPrimary care provider and medical director of the primary care group at the Women’s Medicine Collaborative of LifeSpan Physician Group in Providence\, Rhode Island \nAbstract:  \nAnxiety can be managed by understanding reward-based learning and using mindfulness to interrupt unwanted behavior. Habits form to promote survival. The underlying mechanism is based on reward-based learning. There are areas of the brain where habits run on autopilot. The neo-cortex\, or new brain\, is where mindfulness can help break the cycle of unwanted habits of anxiety. Anxiety as an emotion has associated behaviors\, including worry\, rumination\, stress eating\, and smoking. The goal of unwinding anxiety is to offer an alternative to autopilot habits by employing mindfulness techniques. Multiple studies have demonstrated significant efficacy in this tool. Mindfulness is the awareness that occurs when paying attention in the present moment intentionally\, without judgment. The felt experience of mindfulness replaces autopilot habits like worry and stress. \nBio: \nDr Nancy Lasson is a primary care provider and medical director of the primary care group at the Women’s Medicine Collaborative of LifeSpan Physician Group in Providence\, Rhode Island. She is also a clinical assistant professor of medicine\, Warren Alpert Medical School at Brown University. Dr. Lasson received her B.A. at the University of Pennsylvania in religious studies and cultural anthropology. She studied medicine at the Philadelphia College of Osteopathic Medicine. She is board certified in both internal medicine and lifestyle medicine. She was a primary care physician in Limestone Medicine and Pediatrics of Christiana Care in Wilmington\, Delaware where she achieved a “Top Doctor in Delaware” award in internal medicine. She is a Fellow of the American College of Physicians and Diplomat of the American College of Lifestyle Medicine. Recently she became certified as a behavior change facilitator.  Dr. Lasson’s clinical interests include women’s medical issues and care; preventive medicine\, especially cholesterol management; coronary artery disease and cancer screening; end-of-life care for patients and their families; and mindfulness practices. She is passionate about struggles of the human soul.
URL:https://coe.northeastern.edu/event/che-seminar-series-unwinding-anxiety-an-app-based-mindfulness-program/
LOCATION:108 SN
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DTSTART;TZID=America/New_York:20211119T180000
DTEND;TZID=America/New_York:20211119T190000
DTSTAMP:20260514T164339
CREATED:20211104T152402Z
LAST-MODIFIED:20211104T152454Z
UID:29327-1637344800-1637348400@coe.northeastern.edu
SUMMARY:Info session:  'Technical Innovation and Product Prototyping” at Silicon Valley
DESCRIPTION:Northeastern University is a leader in experiential\, interactive\, and innovative education. This unique dialogue program\, the “Technical Innovation and Product Prototyping” at Silicon Valley prepares students to deal with future innovative challenges involving customer-driven Technical Innovation\, product prototyping\, and entrepreneurship far into the future. Attached is the flyer of the program\, please feel free to pass the information to other interested students. \nImportant dates: \n\nStudent applications open: November 1\, 2021\nDOC fair:    November 16 from 5:00pm-7:00pm\, and November 17 from 11:00am-1:00pm at Curry West Addition\nPriority deadline: December 1\, 2021\nFinal deadline: January 20\, 2022\nInfo session:  November 19\, December 3\, and January 19 from 6:00pm-7:00pm at 208 SN\, and November 23 and 29 from 6:00pm-7:00pm via zoom\n\nIf you are available and have time\, visit the “Technical Innovation and Product Prototyping” at Silicon virtual booth at the Dialogue fair and info sessions and learn more about it. At the same time\, if you want to start the application process\, please visit the program site and start the process. \nFor more info please visit Technical Innovation and Product Prototyping.
URL:https://coe.northeastern.edu/event/info-session-technical-innovation-and-product-prototyping-at-silicon-valley/
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