Varun Verma

Publications

Direct detection of the ∼ 8.4 eV internal conversion energy of 229mTh embedded in a superconducting nanowire

August 25, 2025

Author(s)

Galen O'Neil, Kjeld Beeks, Eric Hudson, David Ray Leibrandt, Marion Mallweger, Sae Woo Nam, Sayan Patra, Gil Porat, Dileep Venkatarama Reddy, Thorsten Schumm, Stephen Schoun, Benedict Seiferle, Christian Schneider, Lars von der Wense, Peter Thirolf, Varun Verma, Jun Ye, Chuankun Zhang

We report on a direct measurement of the ∼ 8.4 eV nuclear excitation energy of the isomeric first excited state 229mTh via the internal conversion (IC) decay

A 64-pixel mid-infrared single-photon imager based on superconducting nanowire detectors

August 27, 2024

Author(s)

Benedikt Hampel, Richard Mirin, Sae Woo Nam, Varun Verma

We demonstrate a 64-pixel single-photon imager based on superconducting nanowire single-photon detectors (SNSPDs) capable of counting single photons up to a

Trap-integrated superconducting nanowire single-photon detectors for trapped-ion qubit state readout

June 7, 2024

Author(s)

Benedikt Hampel, Daniel Slichter, Dietrich Leibfried, Richard Mirin, Varun Verma

State readout of trapped-ion qubits is usually achieved by observing qubit-state-dependent fluorescence from the ion while driving an optical cycling transition

View more Publications

Data and Software Publications

Data for "A 64-pixel mid-infrared single-photon imager based on superconducting nanowire detectors"

Author(s)

Benedikt Hampel, Richard P. Mirin, Sae Woo Nam, Varun B. Verma

Numerical values of all data points shown in figures for manuscript "A 64-pixel mid-infrared single-photon imager based on superconducting nanowire detectors", available on arXiv (https://arxiv.org

Data for "Trap-integrated superconducting nanowire single-photon detectors for trapped-ion qubit state readout"

Author(s)

Benedikt Hampel, Daniel H. Slichter, Dietrich Leibfried, Richard P. Mirin, Sae Woo Nam, Varun B. Verma

Numerical values of all data points shown in figures for manuscript "Trap-integrated superconducting nanowire single-photon detectors for trapped-ion qubit state readout", Proc. SPIE 13025, Advanced

Patents (2018-Present)

Thermally Coupled Imager for Performing Time and Position Sensitive Imaging of Single Photons

NIST Inventors

Adam McCaughan and Varun Verma

A SNSPD imager which will be capable of reading out at least tens of thousands of detectors. This array, the SNSPD "thermally-coupled imager" (TCI) efficiently multiplexes SNSPDs on a single readout line and is capable of resolving both location and time-of-arrival of single photons over a large {>

Thermal Impedance Amplifier

NIST Inventors

Adam McCaughan , Varun Verma and Sonia Buckley

A thermal impedance amplifier includes: a resistive layer including: a resistance member; a first electrode in electrical communication with the resistance member; and a second electrode in electrical communication with the resistance member; a switch layer opposing the resistive layer and including

View All Patents

Varun Verma (Fed)

Publications

Data and Software Publications

Patents (2018-Present)