Senior Scientists

John Appel
Contact Information
- [email protected]
- Johns Hopkins University
Research Interests: Associate Research Scientist — Development, integration and deployment of CLASS detector arrays

Charles Bennett
Contact Information
- [email protected]
- Johns Hopkins University
Research Interests: Faculty — Co-Principal Investigator

Ricardo Bustos
Contact Information
- [email protected]
- Universidad Católica de la Santísima Concepción
Research Interests: Faculty — CLASS project operations and engineering support

David Chuss
Contact Information
- [email protected]
- Villanova University
Research Interests: Faculty — Modulator and detector development; Constructing the large grids for the modulators; Developing free-space cryogenic calibrators for validating the detectors

Rahul Datta
Contact Information
- [email protected]
- University of Chicago and Fermilab
Research Interests: Research Scientist

Jullianna Denes Couto
Contact Information
- [email protected]
- Johns Hopkins University
Research Interests: Field operations

Kevin Denis
Contact Information
- [email protected]
- Goddard Space Flight Center
Research Interests: Tenured Scientist — Detector fabrication lead

Rolando Dünner Planella
Contact Information
- [email protected]
- Pontificia Universidad Católica de Chile
Research Interests: Faculty

Joseph Eimer
Contact Information
- [email protected]
- Johns Hopkins University
Research Interests: Associate Research Scientist — Instrumentation and analysis

Tom Essinger-Hileman
Contact Information
- [email protected]
- Goddard Space Flight Center
Research Interests: Tenured Scientist — Detector and focal plane array development; Polarization calibrator design; Receiver design and construction; Filter development

Mark Halpern
Contact Information
- [email protected]
- University of British Columbia
Research Interests: Faculty — Multichannel electronics

Katie Harrington
Contact Information
- [email protected]
- Argonne National Laboratory
Research Interests: Assistant Physicist - Designed and built the first 2 VPMs; Developed machining procedures for the cryogenic plastic optics; Analysis work relating to the VPM and demodulation

Gene Hilton
Contact Information
- [email protected]
- National Institute of Standards and Technology
Research Interests: Tenured Scientist — SQUID multiplexing hardware fabrication

Johannes (Hannes) Hubmayr
Contact Information
- [email protected]
- National Institute of Standards and Technology
Research Interests: Faculty — Providing SQUID multiplexing hardware

Tobias Marriage
Contact Information
- [email protected]
- Johns Hopkins University
Research Interests: Faculty — Co-Principal Investigator

Jeffrey McMahon
Contact Information
- [email protected]
- University of Chicago
Research Interests: Faculty — Silicon lenses

Nathan Miller
Contact Information
- [email protected]
- Johns Hopkins University
Research Interests: Research Scientist — Analysis

Gonzalo Palma
Contact Information
- [email protected]
- Universidad de Chile
Research Interests: Faculty — Theory

Lucas Parker
Contact Information
- [email protected]
- Los Alamos National Laboratory
Research Interests: Cryogenics; Data analysis

Rodrigo Reeves
Contact Information
- [email protected]
- Universidad de Concepción
Research Interests: Faculty — Project operations and engineering support

Carl Reintsema
Contact Information
- [email protected]
- National Institute of Standards and Technology
Research Interests: Tenured Scientist — SQUID multiplexing hardware

Karwan Rostem
Contact Information
- [email protected]
- University of Maryland, Baltimore County
Research Interests: Research Scientist — Detector design and testing
Janet Weiland
Contact Information
- [email protected]
- Johns Hopkins University
Research Interests: Research Scientist — Analysis

Edward Wollack
Contact Information
- [email protected]
- Goddard Space Flight Center
Research Interests: Tenured Scientist — Detector design and testing lead

Lingzhen Zeng
Contact Information
- [email protected]
- Harvard-Smithsonian Center for Astrophysics
Research Interests: Research Scientist — Smooth-walled horn design
Engineering and Scientific Staff

Aamir Ali
Contact Information
- [email protected]
- John Templeton Foundation
Research Interests: Cosmology

Mandana Amiri
Contact Information
- [email protected]
- University of British Columbia
Research Interests: Research Scientist — Multichannel electronics

Deniz Augusto Nunes Valle
Contact Information
- [email protected]
- Sociedad Radiosky Asesorias de Ingenieria
Research Interests: Field Engineer

Michael Brewer
Contact Information
- [email protected]
- Johns Hopkins University
Research Interests: Engineer — Telescope software and pointing
Meng-ping Chang
Contact Information
- [email protected]
- Goddard Space Flight Center
Research Interests: Engineer — Detector fabrication

Pedro Fluxá
Contact Information
- [email protected]
- European Southern Observatory
Research Interests: Cryogenics; Field work; Analysis
Ron Hu
Contact Information
- Goddard Space Flight Center
Research Interests: Engineer — Detector fabrication

John Karakla
Contact Information
- [email protected]
- Johns Hopkins University
Research Interests: Engineer — Telescope mount design and fabrication; Site construction and logistics

Carolina Núñez
Contact Information
- Northrop Grumman

Keisuke Osumi
Contact Information
- MITRE

James Rittner
Contact Information
- Baltimore City Public Schools
Research Interests: Visiting Scholar

Jeremy Smith
Contact Information
- [email protected]
- Baltimore County Public Schools
Research Interests: Visiting Scholar

Zhilei Xu
Contact Information
- [email protected]
- Neo Ivy Capital Management
Research Interests: Postdoctoral Scholar — Instrument development (cold optics and the mount system); Data analysis effort to calibrate the instrument
Postdoctoral Researchers

Sarah Marie Bruno
Postdoctoral Fellow
Contact Information
- [email protected]
- Johns Hopkins University
Research Interests: Experimental CMB cosmology

Joseph Cleary
Contact Information
- [email protected]
- Fermilab, University of Chicago
Research Interests: Assembling and characterizing the W2 and HF VPMs, as well as understanding their performance in the field; Manufacturing the AR-coated vacuum windows

Sumit Dahal
Contact Information
- [email protected]
- Goddard Space Flight Center
Research Interests: Postdoctoral Researcher — Detector characterization and focal plane assembly; Manufacturing lenses and filters

Kyle Helson
Contact Information
- [email protected]
- Goddard Space Flight Center
Research Interests: Postdoctoral Fellow — Detector testing

Jeffrey Iuliano
Contact Information
- [email protected]
- University of Pennsylvania
Research Interests: Instrumentation

Yunyang Li
Contact Information
- [email protected]
- University of Chicago
Research Interests: Data Analysis

Matthew Petroff
Contact Information
- [email protected]
- Harvard University
Research Interests: Postdoctoral Researcher

Duncan Watts
Contact Information
- [email protected]
- University of Oslo
Research Interests: Postdoctoral Researcher — Data analysis
Graduate Students

Carol Chan
Contact Information
- [email protected]
- Johns Hopkins University
Research Interests: Instrumentation

Carolina Morales
Contact Information
- [email protected]
- Johns Hopkins University
Research Interests: Instrumentation and Analysis


Rui Shi
Contact Information
- [email protected]
- Johns Hopkins University
Research Interests: Graduate Student

Koji Shukawa
Contact Information
- [email protected]
- Johns Hopkins University
Research Interests: Instrumentation and Data Analysis
Undergraduate Students

Naina Gupta
Contact Information
- [email protected]
- Johns Hopkins University
Research Interests: Instrumentation

Alexis Li
Contact Information
- [email protected]
- Johns Hopkins University
Research Interests: Data analysis

Tanvi Ranade
Contact Information
- [email protected]
- Johns Hopkins University
Research Interests: Small radio telescope control & outreach


Amelie Wang
Contact Information
- [email protected]
- Johns Hopkins University
Research Interests: Laboratory measurements
High School Students

Jerome Brown
High School Student
Contact Information
- Baltimore Polytechnic Institute
Research Interests: Instrumentation