Aakash Ravi

Postdoctoral Fellow

Ph.D. Physics, Harvard University, 2020
B.A.Sc. Engineering, University of Waterloo, 2012

Aakash’s research interests include:

Stellar accelerations and measuring the local dark matter density
Direct detection of dark matter in solid-state systems
Optical frequency combs and supercontinuum generation
Doppler exoplanet searches
Transit spectroscopy

aakash.ravi@gmail.com

Google Scholar Citations

Personal Website

Fun Fact: Aakash’s favorite thing to do on the weekends is to go rock climbing outdoors! This is a picture of him climbing The Great Escape at Shagg Pond, Maine.

Apr 7, 2021

A paper on Milky Way Accelerometry via Millisecond Pulsar Timing has been published in PRL!

Sep 1, 2020

A paper on Milky Way Accelerometry via Millisecond Pulsar Timing has been posted on the arXiv.

Aug 28, 2019

A group paper on Probing Dark Matter Using Precision Measurements of Stellar Accelerations has been published in Physical Review Letters.

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2021 (2)

Ultraheavy dark matter search with electron microscopy of geological quartz. Reza Ebadi; Anubhav Mathur; Erwin H. Tanin; Nicholas D. Tailby; Mason C. Marshall; Aakash Ravi; Raisa Trubko; Roger R. Fu; David F. Phillips; Surjeet Rajendran; and Ronald L. Walsworth. Phys. Rev. D, 104: 015041. Jul 2021.

link

pdf doi link bibtex 36 downloads

@article{Ebadi2021,
  title = {Ultraheavy dark matter search with electron microscopy of geological quartz},
  author = {Ebadi, Reza and Mathur, Anubhav and Tanin, Erwin H. and Tailby, Nicholas D. and Marshall, Mason C. and Ravi, Aakash and Trubko, Raisa and Fu, Roger R. and Phillips, David F. and Rajendran, Surjeet and Walsworth, Ronald L.},
  journal = {Phys. Rev. D},
  volume = {104},
  issue = {1},
  pages = {015041},
  numpages = {10},
  year = {2021},
  month = {Jul},
  comment = {07},
  publisher = {American Physical Society},
  doi = {10.1103/PhysRevD.104.015041},
  url_link = {https://link.aps.org/doi/10.1103/PhysRevD.104.015041}, 
  url_pdf = {https://blog.umd.edu/walsworth/files/2020/08/2021_Ebadi_PRD.pdf},
  keywords = {fundamental-phys},
}

Milky Way Accelerometry via Millisecond Pulsar Timing. David F. Phillips; Aakash Ravi; Reza Ebadi; and Ronald L. Walsworth. Phys. Rev. Lett., 126: 141103. Apr 2021.

link

Milky Way Accelerometry via Millisecond Pulsar Timing [pdf]

pdf

supplement doi link bibtex 59 downloads

@article{Phillips2021,
  title = {Milky Way Accelerometry via Millisecond Pulsar Timing},
  author = {Phillips, David F. and Ravi, Aakash and Ebadi, Reza and Walsworth, Ronald L.},
  journal = {Phys. Rev. Lett.},
  volume = {126},
  issue = {14},
  pages = {141103},
  numpages = {7},
  year = {2021},
  month = {Apr},
  comment = {04},
  publisher = {American Physical Society},
  doi = {10.1103/PhysRevLett.126.141103},
  url_link = {https://link.aps.org/doi/10.1103/PhysRevLett.126.141103},
  url_pdf = {https://blog.umd.edu/walsworth/files/2020/08/2021_Phillips_PRL.pdf},
  url_supplement = {https://blog.umd.edu/walsworth/files/2020/08/2021_Phillips_PRL_SM.pdf},
  keywords = {astro,fundamental-phys},
}

2019 (1)

Probing Dark Matter Using Precision Measurements of Stellar Accelerations. Aakash Ravi; Nicholas Langellier; David F. Phillips; Malte Buschmann; Benjamin R. Safdi; and Ronald L. Walsworth. Physical Review Letters, 123(9): 091101. August 2019.

link

Probing Dark Matter Using Precision Measurements of Stellar Accelerations [pdf]

pdf

supplement doi link bibtex 14 downloads

@Article{Ravi2019,
  author         = {Ravi, Aakash and Langellier, Nicholas and Phillips, David F. and Buschmann, Malte and Safdi, Benjamin R. and Walsworth, Ronald L.},
  title          = {Probing {Dark} {Matter} {Using} {Precision} {Measurements} of {Stellar} {Accelerations}},
  journal        = {Physical Review Letters},
  year           = {2019},
  volume         = {123},
  number         = {9},
  pages          = {091101},
  month          = aug,
  comment        = {08},
  doi            = {10.1103/PhysRevLett.123.091101},
  keywords       = {astro,fundamental-phys},
  url_link       = {https://link.aps.org/doi/10.1103/PhysRevLett.123.091101},
  url_pdf        = {https://blog.umd.edu/walsworth/files/2020/08/2019_Ravi_PRL.pdf},
  url_supplement = {https://blog.umd.edu/walsworth/files/2020/08/2019_Ravi_PRL_SM.pdf},
}

2018 (1)

Visible-Spanning Flat Supercontinuum for Astronomical Applications. Aakash Ravi; Matthias Beck; David F. Phillips; Albrecht Bartels; Dimitar Sasselov; Andrew Szentgyorgyi; and Ronald L. Walsworth. Journal of Lightwave Technology, 36(22): 5309–5315. November 2018.

Visible-Spanning Flat Supercontinuum for Astronomical Applications [link]

code

Visible-Spanning Flat Supercontinuum for Astronomical Applications [pdf]

pdf doi link bibtex 10 downloads

@Article{Ravi2018,
  author   = {Ravi, Aakash and Beck, Matthias and Phillips, David F. and Bartels, Albrecht and Sasselov, Dimitar and Szentgyorgyi, Andrew and Walsworth, Ronald L.},
  title    = {Visible-{Spanning} {Flat} {Supercontinuum} for {Astronomical} {Applications}},
  journal  = {Journal of Lightwave Technology},
  year     = {2018},
  volume   = {36},
  number   = {22},
  pages    = {5309--5315},
  month    = nov,
  comment  = {11},
  doi      = {10.1109/JLT.2018.2872423},
  keywords = {astro},
  url_code = {https://blog.umd.edu/walsworth/files/2020/08/scgen-taper.zip},
  url_pdf  = {https://blog.umd.edu/walsworth/files/2020/08/2018_Ravi_JLT.pdf},
}

2017 (1)

Astro-comb calibrator and spectrograph characterization using a turn-key laser frequency comb. Aakash Ravi; David F. Phillips; Matthias Beck; Leopoldo L. Martin; Massimo Cecconi; Adriano Ghedina; Emilio Molinari; Albrecht Bartels; Dimitar Sasselov; Andrew Szentgyorgyi; and Ronald L. Walsworth. Journal of Astronomical Telescopes, Instruments, and Systems, 3(4): 045003. November 2017.

link

Astro-comb calibrator and spectrograph characterization using a turn-key laser frequency comb [pdf]

pdf doi link bibtex 10 downloads

@Article{Ravi2017,
  author   = {Ravi, Aakash and Phillips, David F. and Beck, Matthias and Martin, Leopoldo L. and Cecconi, Massimo and Ghedina, Adriano and Molinari, Emilio and Bartels, Albrecht and Sasselov, Dimitar and Szentgyorgyi, Andrew and Walsworth, Ronald L.},
  title    = {Astro-comb calibrator and spectrograph characterization using a turn-key laser frequency comb},
  journal  = {Journal of Astronomical Telescopes, Instruments, and Systems},
  year     = {2017},
  volume   = {3},
  number   = {4},
  pages    = {045003},
  month    = nov,
  comment  = {11},
  doi      = {10.1117/1.JATIS.3.4.045003},
  keywords = {astro},
  url_link = {https://doi.org/10.1117/1.JATIS.3.4.045003},
  url_pdf  = {https://blog.umd.edu/walsworth/files/2020/08/2017_Ravi_JATIS.pdf},
}