Varun Verma

Publications

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

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

January 25, 2024

Author(s)

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

A large-format mid-infrared single-photon imager with very low dark count rates would enable a broad range of applications in fields like astronomy and

Photon-pair production and frequency translation using backward-wave spontaneous parametric downconversion

November 16, 2023

Author(s)

Paulina Kuo, Dileep Reddy, Varun Verma, Sae Woo Nam, Andrius Zukauskas, Carlota Canalias

Backward-wave three-wave mixing is a difficult χ(2) interaction to observe, because it requires ultrashort poling periods to achieve phasematching. Having

Superconducting Nanowire Single-Photon Detector Arrays for the Near- to Mid-Infrared

October 31, 2023

Author(s)

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

Superconducting Nanowire Single-Photon Detectors (SNSPDs) are excellent devices for the analysis of faint light from the ultraviolet to the mid-infrared. Recent

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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

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Varun Verma (Fed)

Publications

Patents (2018-Present)