Membranes suspending a mass
Mass on membrane
Published: March 31, 2023

Mechanical resonators featuring large tensile stress have enabled a range of experiments in quantum optomechanics and precision sensing. Many sensing applications require functionalizing tensioned resonators by appending additional mass to them. However, this may dramatically change the resonator mode quality factor, and hence its sensitivity.

In our work published in Physical Review Applied, we study how mode quality factor depends on suspending a mass on a type of membrane resonator known as a trampoline.  Surprisingly, the quality factor becomes independent of the mass in the large-load regime, for any tensioned resonator, which explains previous related results and will enable new design perspectives.

Coherence of Rabi oscillations with spin exchange
Spin exchange
Published: February 05, 2023

In our work recently published in Physical Review Research we study Rabi oscillations in a vapor cell environment to understand their coherence in a regime where strong population dynamics are present. With these efforts we take an important step towards applying ideas in vector magnetic field measurements using Rabi oscillations to vapor cells.

JILA Fellow Cindy Regal Named Baur/SPIE Endowed Chair in Optics and Photonics
Cindy regal.
Published: November 11, 2020

Regal is the first recipient for JILA's new endowed chair in optics and photonics.

New $115 Million Quantum Systems Accelerator to Pioneer Quantum Technologies for Discovery Science
JILA building
Published: August 26, 2020

A new national quantum research center draws on JILA Fellows' and their expertise to make the United States an international leader in quantum technology.

JILA Fellow Cindy Regal Wins 2020 FRED Award
Published: July 24, 2020

JILA Fellow Cindy Regal has been selected as the 2020 recipient of Research Corporation for Science Advancement’s Cottrell Frontiers in Research Excellence and Discovery (FRED) Award. The $250,000 FRED Award recognizes and rewards innovative research that could transform an area of science.

2D membrane phononic crystals for force sensing
2D Membrane illustration.
Published: December 29, 2019

Analysis and new designs of low mass SiN mechanical defects in 2D acoustic shields for force sensing -- now published in Physical Review Applied.

Upcoming workshop: Optomechanical architectures for precision sensing
Optomechanical figure.
Published: October 09, 2019

We are organizing an upcoming workshop on optomechanical architectures for new physics searches through force signatures on scalable arrays of mechanical resonators.  The workshop is sponsored by an APS Moore Foundation Fundamental Physics convening award and co-sponsored by the JILA NSF Physics Frontier Center and JQI.  

Graduate student Chris Kiehl wins poster prize at conference in Germany
Christopher Kiehl receives poster award
Published: September 03, 2019

Chris Kiehl, a graduate student in the Regal Group, won a prize for his poster on quantum sensing and metrology at a conference in Germany this summer. 

Vector magnetometry
Vector magnetometry image.
Published: October 09, 2018

Microwaves report on the direction of a magnetic field!  Our work on self-calibrated atomic vector magnetometry has been published in Phys. Rev. Lett.  We show that a microwave polarization ellipse can be mapped with atomic transitions, and can serve as a useful three-dimensional reference.  Our next step is to translate this idea to atomic vapor cells to make an atomic vector magnetometer that can calibrate itself at any time.

Cindy Regal Named 2018 GRC Cruickshank Lecturer
Published: July 23, 2018

JILA Fellow Cindy Regal has been named a 2018 Alexander M. Cruickshank Lecturer by the Gordon Research Conferences (GRC). This prestigious title is given worldwide to scientists at the top of their fields in the physical, chemical, and biological sciences. 

APS Fellowship
Cindy Regal in lab.
Published: December 21, 2016

Cindy Regal was elected a 2016 APS Fellow "For observation of quantum radiation pressure noise on a macroscopic object, and establishing quantum control over individual neutral atoms."  

JILA’s Quantum Machine Team Scores!
Cindy Regal and Konrad Lehnert photo.
Published: August 30, 2016

Fellows Cindy Regal and Konrad Lehnert have won the 2016 Governor’s Award for High-Impact Research in Foundational Science and Technology, CO-LABS announced today. JILA Chair Dana Anderson submitted the nomination of their joint research on building, studying, and using devices that exploit the strange and powerful properties of quantum mechanics. The nomination was entitled, The JILA Quantum Machine Team: Extending Mastery of Quantum Mechanics from Microscopic Particles to Human-Made Machines.

Former JILAn Adam Kaufman Wins 2016 DAMOP Thesis Prize
Adam Kaufman in lab.
Published: June 20, 2016

Adam Kaufman has been awarded the 2016 DAMOP Thesis Prize for his outstanding thesis research on assembling neutral atoms in optical tweezers, work conducted in the Regal group at JILA. As part of this  work, Kaufman and his coworkers developed an experiment that allowed the team to use laser cooling to assemble arrays of ground-state neutral atoms in optical tweezers. 

Adam Kaufman receives poster prize at ICAP
Adam Kaufman 2014 photo.
Published: August 19, 2014

Graduate student Adam Kaufman received one of the poster prizes awarded at this year's International Conference on Atomic Physics in Washington DC.  His poster was entitled:  "Atomic Hong-Ou-Mandel effect in tunnel-coupled optical tweezers".

Raman cooling imaging
Two atoms image.
Published: July 22, 2014

We have developed a method for imaging single neutral atoms during continuous Raman sideband cooling.  See our recent work in PRA.  

High-Q InGaP membranes
2014 news.
Published: May 23, 2014

Our work in collaboration with the Garrett Cole and the Aspelmeyer group in Vienna has been published in APL.  We have demonstrated single-crystal high-stress membranes with a mechanical Q similar to SiN membranes.

Cindy Regal Receives 2014 Cottrell Scholars Award
Cindy Regal 2014.
Published: February 20, 2014

Cindy Regal has been selected to receive a 2014 Cottrell Scholars Award from the Research Corporation for Science and Advancement. The Cottrell Scholar Awards are given to early career faculty members who excel at both research and teaching. The awards target scholarship designed to improve undergraduate science education at research universities in the United States.

A phononic shield for vibrating membranes
Phononic shield figure.
Published: January 15, 2014

Recent APL article by our optomechanics group in collaboration with Kat Cicak and Ray Simmonds at NIST.  The little white square in the center is a silicon nitride membrane.  It is embedded in a silicon periodic structure or phononic crystal.

Cindy Regal, Matt Squires, Wen Li, and Ian Coddington Win Presidential Early Career Awards for Scientists and Engineers
Photograph of Cindy Regal.
Published: July 24, 2012

Fellow Cindy Regal,  recent JILA grad Matthew Squires (Anderson group, Ph.D. 2008),  former postdoc Wen Li (Kapteyn/Murnane group), and JILA grad Ian Coddington (Cornell group, Ph. D. 2004) have received prestigeous Presidential Early Career Awards for Scientists and Engineers, according to a White House press release issued July 23. Each award is for $1 million over 5 years.

Cindy Regal Wins David and Lucille Packard Fellowship for Science and Engineering
Regal thumbnail 2.
Published: October 18, 2011

Associate JILA Fellow Cindy Regal has been awarded a prestigious David and Lucille Packard Fellowship for Science and Engineering. Regal, who is also assistant professor of physics at the University of Colorado, will receive $875,000 over five years to support her work in experimental atomic physics. She is currently developing laser-based  techniques for controlling single neutral atoms and exploring the creation of tiny quantum gases whose atoms can be individually manipulated.