Physicist & Optical Engineer

©2024 STUART ISETT/www.isett.com

Experience Across Scale

My work in physics and engineering spans orders of magnitude, from kilometer-scale instruments to some of the smallest physical changes ever detected.

1 km
1 m
1 mm
1 µm
1 nm
1 pm
1 fm
1 am
Long-Baseline Interferometry

Precision optical systems spanning kilometer-scale baselines.

LIGO Livingston Observatory

Advanced LIGO uses 4 km Fabry–Pérot arm cavities to measure extraordinarily small changes in optical path length.

INTERFEROMETRY · OPTICAL SYSTEMS · LIGO
Experimental Optical Systems

Building and aligning complex optical experiments.

Precision mechanical design and optical hardware

Design, assembly and alignment of meter-scale optical systems integrating lasers, imaging, sensing and controls.

OPTICS · ALIGNMENT · EXPERIMENTAL PHYSICS
Precision Mechanical Design

Small components, fixtures and optical hardware.

Annular mask for precision optical system

Designing and machining precision components for experimental optical systems and instrumentation.

CAD · MACHINING · PROTOTYPING
Micro-Scale Optical Physics

Understanding localized behavior in precision optics.

Dark-field microscope image of a point absorber on an Advanced LIGO optic

Investigation of microscopic features and defects that influence the performance of precision optical systems.

OPTICAL MATERIALS · COATINGS · CHARACTERIZATION
Wavefront Sensing

Nanometer-scale measurement of optical wavefront distortion.

Hartmann wavefront sensor measurement

Hartmann wavefront sensing and imaging techniques for measuring optical-path distortion in precision interferometric systems.

IMAGING · OPTICS · SENSING
Precision Cavity Control

Suppressing residual motion in optical cavities.

IMAGE

Feedback sensing and control for maintaining resonance and suppressing residual length noise in precision optical cavities.

CONTROLS · INTERFEROMETRY · NOISE
Gravitational-Wave Detection

Measuring differential length changes at extraordinary precision.

IMAGE

Kilometer-scale interferometers measuring gravitational-wave strains corresponding to differential length changes on the attometer scale.

GRAVITATIONAL WAVES · LIGO · PRECISION MEASUREMENT

About Me

I’m an experimental physicist and systems engineer with over two decades of experience in ultra-precise instrumentation, control systems, and optical sensing. My work has spanned academic research and large-scale international collaborations—including the Nobel Prize-winning detection of gravitational waves—where I’ve led efforts in laser stabilization, adaptive optics, and thermal compensation systems.

What drives me is building real, working systems that solve complex physical problems. I thrive at the intersection of theoretical insight, hands-on engineering, and collaborative problem-solving.

I'm known for delivering clear technical communication and for mentoring early-career scientists and engineers. Whether I'm debugging in the lab, analyzing data, or writing software to automate an experiment, I’m focused on precision, clarity, and impact.

Contact Me

Interested in working together? Fill out some info and I will be in touch shortly.