Selected previous research

Completed projects that form PIC Lab’s technical foundation

These projects were undertaken during Dr. Vikrant Kumar Singh’s doctoral research at IISc Bangalore and postdoctoral research at UT Dallas.

Institutional context: experimental photographs on these pages represent completed work at IISc or UT Dallas and should not be interpreted as current PIC Lab facilities at IIT Kharagpur.
Composite figure of a six-degree-of-freedom diamagnetic nanopositioner
Contactless motion and force metrology

From passive levitation to hybrid positioning

Cross-shaped diamagnetic positioning stage

Doctoral research · IISc Bangalore

Six-DOF Diamagnetic Nanopositioning

6-DOFmotion
5 mmtravel
<1.88 nmprecision
MEMS force sensor

Postdoctoral research · UT Dallas

Planar EM Actuators & Force Metrology

100×force density
1000×stiffness density
<15%error
Hybrid NFAL EM prototype

Postdoctoral research · UT Dallas

Hybrid NFAL–EM Nanopositioning

<20 nmresolution
1.42 mmXY travel
171 HzZ bandwidth
Automated and parallel AFM

Reducing maintenance and serial-scanning bottlenecks

AFM tip supply and tip holder

Doctoral research · IISc Bangalore

Automated In-Situ AFM Tip Replacement

10 sreplacement
<0.3 µmerror
Restoredimaging
Three active MEMS AFM cantilevers

Postdoctoral research · UT Dallas

Parallel Active MEMS Microcantilevers

3×throughput
12 nmsampling
10 µmZ range
Research lineage

From completed systems to current PIC Lab directions

Contactless motion

Six-DOF diamagnetic positioning
Planar EM actuator optimization
Hybrid NFAL–EM positioning

Current program

Contactless Multi-Axis Precision Positioning
Mechanobiology force instrumentation

AFM foundations

Automated AFM tip replacement
Parallel active MEMS cantilevers

Current program

Parallel Atomic Force Microscopy
Automated probe handling and maintenance