Varun Verma

Publications

A superconducting thermal switch with ultrahigh impedance for interfacing superconductors to semiconductors

July 25, 2019

Author(s):

Adam N. McCaughan, Varun B. Verma, Sonia M. Buckley, Alexander N. Tait, Sae Woo Nam, Jeffrey M. Shainline

A number of current approaches to quantum and neuromorphic computing use superconductors as the basis of their platform or as a measurement component, and will...

Quantum Frequency Conversion of a Quantum Dot Single-Photon Source on a Nanophotonic Chip

May 20, 2019

Author(s):

Anshuman Singh, Qing Li, Shunfa Liu, Ying Yu, Xiyuan Lu, Christian Schneider, Sven Hofling, John R. Lawall, Varun B. Verma, Richard P. Mirin, Sae Woo Nam, Jin Liu, Kartik A. Srinivasan

Single self-assembled InAs/GaAs quantum dots are promising bright sources of indistinguishable photons for quantum information science. However, their...

Single self-assembled InAs/GaAs quantum dots in photonic nanostructures: the role of nanofabrication

June 13, 2018

Author(s):

Jin Liu, Kumarasiri Konthasinghe, Marcelo I. Davanco, John R. Lawall, Vikas Anant, Varun B. Verma, Richard P. Mirin, Jin Dong Song, Ben Ma, Ze Sheng Chen, Hai Qiao Ni, Zhi Chuan Niu, Kartik A. Srinivasan

Single self-assembled InAs/GaAs quantum dots are a promising solid-state quantum technology, with vacuum Rabi splitting, single-photon-level nonlinearities,...

Ultra-sensitive mid-infrared emission spectrometer using a WSi superconducting nanowire single-photon detector

June 11, 2018

Author(s):

Varun B. Verma, Martin J. Stevens, Richard P. Mirin, Sae Woo Nam, Li Chen, Dirk Schwarzer, Jascha A. Lau

We evaluate the performance of a mid-infrared emission spectrometer operating at wavelengths between 2 and 7 υm based on an amorphous tungsten silicide (a...

Short-wave infrared compressive imaging of single photons

June 06, 2018

Author(s):

Thomas Gerrits, Daniel Lum, Varun B. Verma, John Howell, Richard P. Mirin, Sae Woo Nam

We present a short-wave infrared (SWIR) single photon camera based on a single superconducting nanowire single photon detector (SNSPD) and compressive imaging...