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UT MidIR (Wasserman Group) @UTMidIR

We develop materials, devices and structures that emit, detect, or manipulate IR light. Not an official UT account. Opinions are mine only. post.news: @UTMidIR

Joined October 2018
  • Tweets 443
  • Following 277
  • Followers 308
73 Photos and videos
Three weeks until the CLEO abstract deadline!! submit your paper by 22 November 2024! cleo2025.abstractcentral.com #CLEO2025 #CallForPapers #Quantum #Photonics #Optics
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New from our group, room temp mid-wave IR detectors using bulk InAsSb absorbers, led by grad student Noah Mansfield in collaboration with the Podolskiy group at UMass Lowell. Published in @AppliedPhysLett as part of the Special Topic on Mid- and Far- IR Optoelectonics @NASAESTO
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Noah shows that using a bulk semiconductor absorber in a guided mode resonance architecture, significant enhancement in response for both TE and TM polarized incident light can be achieved. These detectors use absorbers 150 or 250 nm thick, ~1/20th of the free-space wavelength!
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These detectors can be integrated into IR sensors and imagers for a range of applications including for Earth Science applications. This work was funded by @NASA @NASAESTO
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The Wasserman group’s 7th annual retreat, at the Historic Anderson Mill on Lake Travis. Lots of great talks, discussions, and stories, as well as the annual tradition of a surprise cameo from a group alumnus, this year Lan Yu!
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@UTMidIR REU and @_HamptonU student Mya Dean, presenting results from her summer research project on Time-Resolved Photoluminescence of Narrow Band Gap Semiconductors. part of the @TexasCDCM @NSF REU program. We hope we can convince Mya to come back (for REUs or grad school!)
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Zarko's work featured in @AdvSciNews advancedsciencenews.com/the-…

The next big thing in tech could come from these tiny light absorbers - Advanced Science News

When the light absorbers are made very small, almost all the device performance metrics improve—but doing this is easier said than done.

advancedsciencenews.com
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Replying to @UTAustin
@UTAustin is putting on a full-day celebration to mark joining a athletic conference (seriously, feat. Pitbull), yet so understaffed to perform the actual mission of the University that our Office of Sponsored Projects just set up an account for an award that ended 1 month ago.
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Meanwhile, all the higher-up administrators care about is football, reducing diversity, football, and collecting their (massive) paychecks. These people think that the University exists for them, to provide their high-paying jobs and stepping stones to the next position.
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Every initiative is (at best) unrelated, or (more frequently) diametrically opposed, to University's core mission Uni Mission: Generation/Dissemination of Knowledge. Admin Mission: Assembling large staff, collecting paychecks, glossy brochures touting Potemkim initiatives.
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EMC 2024 at @UofMaryland kicking off with a fantastic plenary from Dr. Joseph Berry of @NREL on “A Perovskite Paved Pathway to Multi-Terawatt scale Photovoltaics”. Great way to kick off three days of talks, posters, panels, and friends!
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So proud of this kid, how hard he worked in the classroom and on the court, and how carefully and seriously he took the whole process!!
Melissa Wasserman@MelissaWasserma
23 Jun 2024
Replying to @UTMidIR
@UTMidIR and I are so proud of our son, Elliot, verbally committed to play DI tennis @BrownUniversity! Thank you @AustinTennisAca @jacknewmanATA and special thanks to his coach @BrandonDavisATA!
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Our latest, "Mid-Infrared Perfect Absorption with Planar and Subwavelength-Perforated Ultrathin Metal Films" published in Advanced Physics Research (@AdvSciNews, @wileyinresearch), by post-doc extraordinaire Zarko Sakotic & numerous @UTMidIR team members! doi.org/10.1002/apxr.2024000…

Mid‐Infrared Perfect Absorption with Planar and Subwavelength‐Perforated Ultrathin Metal Films

Having bulk-like optical quality in ultrathin metal films is appealing for many applications including for efficient absorbers. Here, an analytical framework is built to address perfect absorption...

advanced.onlinelibrary.wiley.com
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Finally, we demonstrate that these 'diluted' metals can serve as 'phase doping layers' able to modify the effective optical thickness of dielectric spacers, enabling spectral tuning of the absorber response. Analytical and numerical results are supported with experimental data.
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This work was supported by the @DARPA OpTIm program, as well as the @AFOSR Multi University Research Initiative (MURI) and @NSF DMREF programs.
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UT MidIR (Wasserman Group) retweeted
Optica Publishing Group@OpticaPubsGroup
17 Jun 2024
Via #OPG_Optica: Sub-terahertz optomechanics ow.ly/2nWY50Sfnac #RacetrackResonator #LithiumNiobate @Yale
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UT MidIR (Wasserman Group) retweeted
Melissa Wasserman@MelissaWasserma
16 Jun 2024
I love that our son is out hitting with his little sister, getting her ready for clay courts. ❤️
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