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Birck Seminar featuring Simeon Bogdanov: Engineering faster and warmer quantum photonic systems - December 19th 10:00a.m. in BRK 2001
by Kelli R Dawson 09 Dec '25

09 Dec '25

Date: December 19th - 10:00a.m. Location: BRK 2001 Engineering faster and warmer quantum photonic systems. The transformative potential of quantum information technologies from quantum computers and secure networks to quantum-limited sensors is held back by a fundamental challenge: decoherence. Quantum states are fragile and easily disrupted by their environment, making them difficult to maintain and use in practical settings. While protecting systems from decoherence is paramount, a complementary and powerful strategy is to selectively enhance the very quantum interactions on which their functionality depends. By speeding up these key quantum processes, we can effectively outpace decoherence. This pathway also enables operation at higher temperatures and bandwidths. In this talk, we will present two advances that follow this principle. First, we introduce a new quantum emitter in diamond: the IL1 color center, which exhibits surprising natural decoupling from bulk phonons — a major source of decoherence — while simultaneously maintaining bright, fast optical emission. This unique combination of properties is promising to realize cryogen-free quantum network nodes and high-precision nanoscale sensors. Second, we present a blueprint for a high-efficiency microwave-to-optical transducer. To overcome the critical bottleneck of converting quantum information between these domains, our design employs a two-stage process via an intermediate-frequency state in the sub-THz range. This approach promises near-unity external conversion efficiency, dramatic thermal noise suppression, and removes the optical components from the dilution refrigerator, crucial advantages for connecting quantum processors over optical links. Together, these examples demonstrate how exploiting specific physical degrees of freedom that enhance the desired quantum interactions without compromising coherence can open the way to warmer, faster, and more practical quantum systems. Simeon Bogdanov Assistant Professor of Electrical and Computer Engineering Univ. of Illinois at Urbana-Champaign Simeon obtained his B.Sc. from Ecole Polytechnique in Palaiseau (France) and his M.Sc. from the Royal Institute of Technology in Stockholm (Sweden). He did his Ph.D. studies at Northwestern University in the group of Manijeh Razeghi and completed his postdoctoral training at Purdue University under Vladimir M. Shalaev and Sasha Boltasseva. He is currently an Assistant Professor of Electrical and Computer Engineering at the University of Illinois at Urbana-Champaign. His interests include semiconductor physics, nanoscale and quantum photonics. He is a recipient of a 2023 NSF CAREER Award and is a Senior Member of Optica. Kelli Dawson, M.Sc Operations Administrator Birck Nanotechnology Center, BRK 1027 O: 765-494-3509 C: 765-532-4519 https://birck.research.purdue.edu/ [cid:05eb5c9b-c4fd-46fc-8595-209acbc4a881]

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Attention Lithography Users!
by Ronald K Reger 08 Dec '25

08 Dec '25

Hi All, Photoresist bottle storage in the cleanroom is overfull. If you use Photoresist in the cleanroom and would like to keep your sample, make sure your bottle is labeled with a dated yellow sticker. I've posted instructional signs and stickers on the red Flammables Cabinet and marked refrigerator by the S-bay, and on the spin coater fume hood in N-bay, see below. Let me know if you can't get to your sample by the end of the week, 12/12/2025, and I'll try to assist. Contact me if you need additional stickers or have any questions. [cid:image001.png@01DC6842.5233D0D0] [cid:image002.jpg@01DC6842.5233D0D0] [cid:image003.jpg@01DC6842.5233D0D0] [cid:image004.jpg@01DC6842.5233D0D0] Thank you, Christian Bokrand Senior Research and Safety Engineer Birck Nanotechnology Center | Room 2287 Office: 765.496.7367 | Email: cbokrand(a)purdue.edu<mailto:cbokrand@purdue.edu> [cid:image005.png@01DC6842.5233D0D0]

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Key Found in in Bindley kitchenette area
by Kelli R Dawson 04 Dec '25

04 Dec '25

Hello Birck Community, If you are missing this key, please see Christine Reidy at the front desk in Bindley. Thank you, Kelli Kelli Dawson, M.Sc Operations Administrator Birck Nanotechnology Center, BRK 1027 O: 765-494-3509 C: 765-532-4519 https://birck.research.purdue.edu/ [cid:8884e052-851a-4b23-a4e1-0e17faaef5f3] From: Christine V Reidy <reidy1(a)purdue.edu> Sent: Thursday, December 4, 2025 9:55 AM To: Brenda L Meador <meador3(a)purdue.edu> Subject: Key. Found in in Bindley kitchenette area. 1st floor. Yours? On my desk in the atrium. Hi Brenda. Your group passes thru Bindley. Someone will want this. Christine [cid:image001.jpg@01DC6505.BB9FB4C0] Sent from my iPhone

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Birck Seminar Series, Dec. 3 -- Michalis Charilaou (Univ. Louisiana at Lafayette), "Photothermal Switching of Magnetization Textures in FeSn: Electron Microscopy and Simulations"
by Neil R Dilley 27 Nov '25

27 Nov '25

MS Teams<https://teams.microsoft.com/l/meetup-join/19%3ameeting_NjA1NmUxMWItMjQ1My00…> [cid:image001.png@01DC5F79.6A62BE90] [cid:image002.png@01DC5F79.6A62BE90] -- Neil R. Dilley, Ph.D. Research Manager Birck Nanotechnology Center , Rm 1014 1205 Mitch Daniels Blvd. West Lafayette, IN 47907-2057 765-496-6080

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Birck Seminar Series, Michalis Charilaou (Univ. Louisiana at Lafayette), "Photothermal Switching of Magnetization Textures in FeSn: Electron Microscopy and Simulations"
by Neil R Dilley 27 Nov '25

27 Nov '25

MS Teams<https://teams.microsoft.com/l/meetup-join/19%3ameeting_NjA1NmUxMWItMjQ1My00…> [cid:image002.png@01DC5F79.13900780]

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Survey of Birck community: interest for a new cryo-magneto-optical measurement setup
by Neil R Dilley 13 Nov '25

13 Nov '25

Dear Birck researchers, The Optics and Spectroscopy Lab under BRK metrology Core is considering adding a new tool, and we are reaching out to learn about your interests in it as potential user groups. The tool is a ColdEdge confocal imaging setup located in BRK 1273. It is equipped with a closed-cycle liquid helium cryostat (~4K) and superconducting magnets (three-axis vector magnets up to 0.5T on each axis). I'm listing its current and potential capabilities below for your reference: Current capabilities (~4K sample temperature, or temperature-dependent measurements from 4K up to ~250K) * Photoluminescence(PL) mapping/scanning * PL spectrum collection * Excitation laser: 532 nm CW laser * Collection spectral range: currently Visible. IR range will be available soon Potential capabilities (~4K sample temperature, or temperature-dependent measurements from 4K up to ~250K) * Raman spectroscopy (532 nm CW excitation), available in near future * Magneto-optic Kerr effect (MOKE) measurements, can be added in the future If any of the above capabilities of this tool appear to be useful for your research, please let us know. We aim to learn about its potential users as much as possible, which will help us decide our next step. Also, please feel free to forward to any groups/researchers who might find this useful, and reach out to me for more details. Thank you! ------ Xiaohui Xu, Ph.D. Quantum Research Scientist Purdue Quantum Science and Engineering Institute (PQSEI) Birck Nanotechnology Center, Rm 1014 Office: (765)-496-3437 -- Neil R. Dilley, Ph.D. Research Manager Birck Nanotechnology Center , Rm 1014 1205 Mitch Daniels Blvd. West Lafayette, IN 47907-2057 765-496-6080

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Birck seminar series: Pramey Upadhyaya/ECE, "Harnessing Spin Relaxation in Multipolar Magnets and 2D Quantum Defects: Towards Sub-THz Spintronics"
by Neil R Dilley 13 Nov '25

13 Nov '25

MS Teams<https://teams.microsoft.com/l/meetup-join/19%3ameeting_YjI2Y2I5OWQtMTQzOC00…> [cid:image001.png@01DC546A.7DDDB2A0] [cid:image002.png@01DC546A.7DDDB2A0]

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Birck Seminar Series, Nov. 19th: Pramey Upadhyaya/ECE, "Harnessing Spin Relaxation in Multipolar Magnets and 2D Quantum Defects: Towards Sub-THz Spintronics"
by Neil R Dilley 13 Nov '25

13 Nov '25

MS Teams<https://teams.microsoft.com/l/meetup-join/19%3ameeting_YjI2Y2I5OWQtMTQzOC00…> [cid:image001.png@01DC546A.7BB1D1F0] [cid:image002.png@01DC546A.7BB1D1F0] -- Neil R. Dilley, Ph.D. Research Manager Birck Nanotechnology Center , Rm 1014 1205 Mitch Daniels Blvd. West Lafayette, IN 47907-2057 765-496-6080

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Seminar by Michael Norman (Argonne); Friday, October 31, 1 pm, BRK 1001
by David Stewart 29 Oct '25

29 Oct '25

Dear all, Please join us Friday, October 31 at 1:00 p.m. in BRK 1001 for a seminar by Dr. Michael Norman from Argonne National Lab. Dr. Norman is an Argonne Distinguished Fellow and Director of the Argonne Quantum Institute. He will give an overview of the Institute and discuss other relevant programs. Seminar flier is attached. Hope to see you there! Thanks, David David J. Stewart, Ph.D. Executive Director, Purdue Quantum Science and Engineering Institute (PQSEI) Industry Liaison Officer & Executive Director, Center for Quantum Technologies (CQT, an NSF IUCRC) Chair, Workforce Technical Advisory Committee, Quantum Economic Development Consortium (QED-C) Birck Nanotechnology Center | 1205 W. Mitch Daniels Blvd. | Room 1287C | West Lafayette, IN 47907 o: 765-496-3117<tel:7654963117> | davidstewart(a)purdue.edu<mailto:davidstewart@purdue.edu> | www.purdue.edu/dp/quantum<http://www.purdue.edu/dp/quantum> *Follow us! Twitter: @PurdueQuantum<https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftwitter.c…>, LinkedIn<https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.linke…>, Facebook<https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.faceb…> [8A5592F8]<https://www.purdue.edu/>

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FW: Hawkins lecture Dr. Suresh Garimella November 12th
by Xiulin Ruan 16 Oct '25

16 Oct '25

From: Me-faculty <me-faculty-bounces(a)ecn.purdue.edu> On Behalf Of Monica Carmen Embry Sent: Thursday, October 9, 2025 8:15 AM To: ME Grad Blog <megradblog(a)purdue.edu>; ECN-ME FACULTY MAIL LIST <ME-FACULTY(a)PURDUE.EDU>; ECN-ME STAFF MAIL LIST <ME-STAFF(a)PURDUE.EDU>; me-postdoc(a)ecn.purdue.edu Subject: [Me-faculty] Hawkins lecture Dr. Suresh Garimella November 12th [cid:image002.png@01DC38F4.B144E410] Monica Embry Senior Administrative Assistant, Mechanical Engineering ME Main Office, 2051 O: 765-494-2689 [cid:image001.png@01DC38F4.01152190]<https://engineering.purdue.edu/ME> We moved, please visit us in 2051.

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