Kausik Majumdar’s Group
Quantum Electronics Laboratory
Indian Institute of Science
Quantum Electronics Laboratory IISc
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Welcome to Kausik Majumdar’s research group at the Department of Electrical Communication Engineering at Indian Institute of Science. We use a combination of theoretical and experimental techniques to investigate the electrical and optoelectronic properties of low dimensional materials and their nanostructures. We are also equally interested in applying these fascinating properties to develop novel devices, encompassing the entire spectrum of device design and simulation, device fabrication using state of the art semiconductor fabrication techniques, and device characterization using various electrical, optical and spectroscopic techniques.

News & Events

2024
Jumping Electrons Provide Stronger Passwords - A Kernel article on our ongoing efforts related to on-chip random number generation.

Two important single photon device demonstrations from our lab:
A bright and highly pure single photon emitter (in Nano Letters) and a room temperature single photon detector @1550 nm (in Advanced Functional Materials)

IISc research highlight on our single photon detector.

An interesting work from our group in Nano Letters showing higher disorder can help in improving valley polarization and valley coherence in monolayer semiconductor - an example of random phase cancellation in exciton polarization.

2023
Our work on ultra-narrow linewidth excitonic emission from monolayer semiconductor is accepted in Physical Review B.

Our work on dynamic tuning of moiré potential in heterobilayer is accepted in Nature Communications.

Our work on IISc web.

Our recent work on fully-coherent excitons in monolayer is picked up by Phys.org.

Medha wins the best PhD thesis award (Seshagiri Kaikini Medal for the year 2021-2022)!

Our work on optical read-out of ~100% exciton valley coherenc e is accepted in Light: Science & Applications.

A coverage of our research activities by IISc's newsletter KERNEL.