November 2014 - BNC-all - ecn.purdue.edu

FW: NSAC Coffee Hour Reminder
by Anthrop, Heather L 14 Nov '14

14 Nov '14

Today's Coffee hour has been canceled. Mikhail will be speaking next week 11/21 hope to see you there. Thank you, Heather L Anthrop From: Anthrop, Heather L Sent: Friday, November 14, 2014 1:27 PM To: bnc-all(a)ecn.purdue.edu Subject: NSAC Coffee Hour Reminder Please join us for today's NSAC Coffee Hour at 3:30 pm in the Birck atrium featuring Mikhail Shalaginov. Plasmonic waveguides cladded by hyperbolic metamaterials Strongly anisotropic media with hyperbolic dispersion can be used for claddings of plasmonic waveguides. In order to analyze the fundamental properties of such waveguides, we analytically study 1D and 2D waveguides arranged of a hyperbolic metamaterial (HMM) in a HMM-Insulator-HMM (HIH) structure. We show that hyperbolic metamaterial claddings give flexibility in designing the properties of HIH waveguides. Our comparative study on plasmonic waveguides reveals that HIH-type waveguides can have a higher performance than MIM or IMI waveguides.

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NSAC Coffee Hour Reminder
by Anthrop, Heather L 14 Nov '14

14 Nov '14

Please join us for today's NSAC Coffee Hour at 3:30 pm in the Birck atrium featuring Mikhail Shalaginov. Plasmonic waveguides cladded by hyperbolic metamaterials Strongly anisotropic media with hyperbolic dispersion can be used for claddings of plasmonic waveguides. In order to analyze the fundamental properties of such waveguides, we analytically study 1D and 2D waveguides arranged of a hyperbolic metamaterial (HMM) in a HMM-Insulator-HMM (HIH) structure. We show that hyperbolic metamaterial claddings give flexibility in designing the properties of HIH waveguides. Our comparative study on plasmonic waveguides reveals that HIH-type waveguides can have a higher performance than MIM or IMI waveguides.

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Condensed Matter Seminar, Friday, November 14, 2014 3:30PM
by Black, Nancy Lee 13 Nov '14

13 Nov '14

Please join us tomorrow, Friday, November 14, 2014 at 3:30 for the Physics and Astronomy Condensed Matter Seminar. See attached flyer.

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BME Seminar announcement: November 12, 9:30-10:20AM, MJIS 1001 (via teleconference to SL165 at IUPUI)
by Cooper, Kathryn R 07 Nov '14

07 Nov '14

***Forwarded to BNC Faculty, Staff, and Graduate Students on Behalf of Prof. Pedro Irazoqui*** From: May, Sandra M Sent: Friday, November 07, 2014 2:44 PM To: May, Sandra M Subject: BME Seminar announcement: November 12, 9:30-10:20AM, MJIS 1001 (via teleconference to SL165 at IUPUI) BME Seminar Series Wednesday, November 12, 2014 9:30-10:20am MJIS 1001 (via teleconference to SL165 at IUPUI) Weldon School of Biomedical Engineering Purdue University >From RF to Terahertz in Scaled CMOS: New Circuit and System Paradigms Harish Krishnaswamy, Ph.D. Assistant Professor Department of Electrical Engineering Columbia University Abstract: Today's CMOS transistor has a cutoff frequency approaching 1 THz, can switch effectively at mmWaves and can be integrated to the tune of millions on a single chip, but exhibits poor linearity and power handling and increased variability. Over the past five years, CoSMIC lab at Columbia University has attempted to answer the following two questions: "Can we think of new circuits and architectures enabled by this RF-to-THz switch where complex signal processing, conventionally performed in digital, is moved to RF?" and "What are the fundamental limits of performance achievable in CMOS in terms of frequency of operation, power generation and power handling?". At RF, I will describe techniques for RF self-interference cancellation and filtering in radios right at the antenna that significantly enhance transmitter/receiver dynamic range and enable wideband software-defined frequency-division-duplex and full-duplex operation. Specifically, we have devised new digitally-controlled and switched-capacitor-based RF active self-interference cancellation and filtering circuits that cancel or filter their own noise and distortion, and achieve wideband cancellation through frequency-domain equalization of the selective antenna interface transfer function. Such RF signal processing techniques enable new functionalities at the communication system and network layers such as full-duplex networks that is the subject of future collaborative research. mmWave power amplifiers have traditionally been limited to output power levels that are lower than 100mW and efficiencies lower than 20% due to the need to use scaled technologies with low supply voltages of around 1V. In this presentation, I will describe techniques developed in my group, including device stacking, switch-mode (Class-E) operation at mmWave, low-loss on-chip power combining and direct digital-to-mmWave conversion that have enabled the first watt-class mmWave PA in CMOS. Watt-level direct digital-to-mmWave power generation in complex CMOS SoCs enables new mmWave communication system paradigms such as mmWave massive MIMO, a topic of future collaborative research in my group. Terahertz frequencies lie beyond the maximum operating frequencies of today's CMOS devices. I will briefly touch upon techniques that leverage device non-linearity to enable terahertz signal generation in CMOS in the milliwatt power envelope. Specifically, we have demonstrated a Maximum-Gain Ring Oscillator topology that achieves the theoretically-maximum oscillation frequency possible in a given technology as well as a nonlinearity-engineering technique that significantly enhances output power in a terahertz power mixer. ~BME Faculty Host: Pedro Irazoqui~ ***Coffee and juice will be provided at West Lafayette***

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Two upcoming seminars
by Vicki Johnson 07 Nov '14

07 Nov '14

Please post the following

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NSAC Coffee hour presentation postponed
by NSAC 07 Nov '14

07 Nov '14

Dear All: There would be no coffee hour presentation today at 3:30PM, instead there will be a presentation on "Practical Aspects of Filter Design" by Greg White from National Instruments at 3PM in Birck 1001. The next coffee hour presentation will be on Friday November 14 at 3:30PM in Birck Atrium with a presentation on: "Plasmonic waveguides cladded by hyperbolic metamaterials" by Mikhail Y. Shalaginov. Thank you, NSAC Officers

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BNC e-news for the week of Nov. 10th
by Anthrop, Heather L 07 Nov '14

07 Nov '14

Ink Cartridge Parking Purchasing Seminar Cleanroom Ink Cartridge If you have use for ink cartridges HP 97 and 96 please see Heather at the front desk. She was one of each and will give them away on a first come first serve basis. Parking On Monday, November 10th 20 parking spaces will be reserved for the Pet Bird Workshop. The workshop will end at 1:30 pm, at that time reserved spaces may be used. Purchasing Attached you will find an updated purchase request form from the Birck Business Office. Please do not use any old versions or other department versions from this point forward when ordering for Birck. The form must be filled out COMPLETELY before giving to any clerical staff or entering into Ariba. If you have any questions or concerns regarding purchasing please see the Business Office or a clerical staff member. Seminar Ethics, Policy and Science Lecture series presents Dr. Howarth Bouis, Director of HarvestPlus. Biofortification: Attenuating the Injustice of Global Malnutrition Wednesday, November 12th at 5:30 pm in PFEN 24, the Dean's Auditorium Free pizza and beer (21+) will be served at the event. For the past four decades, prices for non-staple foods rich in bioavailable minerals and vitamins have risen steadily, while wages have remained relatively stagnant proportional to the cost of living. This has strongly contributed to high mortality and morbidity rates among women and pre-school children in much of the developing world. Immune systems are compromised, children's growth is stunted, economic costs are high. This is a moral bad and if we have the ability to attenuate the negative effects of malnutrition we ought to try. Biofortification, the process of breeding nutrients into food crops, provides at least a partial solution. Since farmers grow these crops themselves and provide them to their neighbors, it is a sustainable, cost-effective, highly promising strategy for delivering needed micronutrients to rural populations in developing countries. This presentation summarizes HarvestPlus's progress to date and identifies challenges in scaling up biofortified crops in target countries, while at the same time highlighting relevant aspects of policy and ethics. Cleanroom Spinner Maintenance We received input that the smaller chucks aren't sealing as well as they usually do. It was found that PMMA was used on the smallest chuck and it took a greater effort to clean out the material. We're implementing a preventive maintenance check as well as ordering new parts for the chucks. MJB3 Aligners A great suggestion was made to shift the aligners to the right on their air-tables to allow better seated ergonomics. This is being done today, Friday Nov 7. Big Screen in Upper Atrium We're working with the card-reader company to modify the software to dynamically show which users are currently in the cleanroom on the big screen HDTV. Additionally we will discuss with them the possibility of providing a signal (audible and/or visual) when the second-to-last person swipes out of the cleanroom in the afterhours. This would enhance the buddy policy for working in acid hoods during nights and weekends. BNC Student/User Forum A user suggested we create a forum for users to share ideas, recipes, findings, discoveries, etc about their processes and experiences in the cleanroom. We've contacted ECN and will set up such a forum in the near future.

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Purchase Request Form
by Anthrop, Heather L 06 Nov '14

06 Nov '14

Attached you will find an updated purchase request form from the Birck Business Office. Please do not use any old versions or other department versions from this point forward when ordering for Birck. The form must be filled out COMPLETELY before giving to any clerical staff or entering into Ariba. If you have any questions or concerns regarding purchasing please see the Business Office or a clerical staff member. Thank you, Heather L Anthrop Purdue University Birck Nanotechnology Center 1205 West State Street West Lafayette, IN 47907 (765) 494-7053

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FW: Concur Issues Today
by Anthrop, Heather L 06 Nov '14

06 Nov '14

From: putrav-l-bounces(a)lists.purdue.edu [mailto:putrav-l-bounces@lists.purdue.edu] On Behalf Of Purdue Univ. Travel Clerks and Travel Issues Sent: Thursday, November 06, 2014 11:00 AM To: 'Purdue Univ. Travel Clerks and Travel Issues' Subject: Concur Issues Today We have been experiencing some issues with Concur being slow and not able to open or attach images. Concur is working on a resolution. We apologize for the inconvenience. Linda Linda Ford Travel Administrator Freehafer Hall 401 S. Grant Street West Lafayette, IN 47907-2024 Send travel policy, procedures and Concur Travel & Expense Questions to: purduetravel(a)purdue.edu<mailto:purduetravel@purdue.edu>

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Workshop and seminar announcement
by Vicki Johnson 06 Nov '14

06 Nov '14

Please make note of the Seminar and Workshop by Colin McAndrew from Freescale Semiconductor attached.

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