Tuck Wah Ng

Title: Tuck Wah Ng: Innovator in Scanning Probe Systems and Laser Technology

Introduction

Tuck Wah Ng is a prominent inventor based in Singapore, known for his contributions to advanced measurement technologies. He holds 2 patents that showcase his innovative approach to scientific instrumentation. His work primarily focuses on enhancing the capabilities of scanning probe systems and laser stabilization techniques.

Latest Patents

One of Tuck Wah Ng's latest patents is a high sensitivity scanning probe system. This invention provides a hybrid optical and interferometric atomic force microscope system designed for monitoring a cantilever probe. The system utilizes a light source to focus a beam on the back of the cantilever probe. The light reflected off the probe is split into two beams of different path lengths, which are then recombined to form an interference beam. This interference beam is passed through a grating that matches its period and orientation, illuminating a photodetector to generate a signal based on the light intensity. The output signal from the photodetector is sent to a positioning system, which directs a piezoelectric system to ensure the probe accurately follows the sample surface. This innovative design allows for the acquisition of multiple characteristics from a single scan of the sample surface.

Another significant patent by Tuck Wah Ng is the stabilized laser plumb. This device includes a laser and a mass that rotates about a spin axis to stabilize the laser's orientation. The mass is pivotable about at least one axis, ideally two axes that are perpendicular to each other and the spin axis. The laser is mounted to the mass, maintaining its orientation relative to the support as the mass rotates. A weight below the tilt axes aligns the spin axis with the gravitational axis, ensuring precise measurements. The plumb may also feature markings on its base to measure the deflection of the laser, allowing for the assessment of surface inclination angles.

Career Highlights

Tuck Wah Ng is affiliated with the National University of Singapore, where he contributes to research and development in the field of measurement technologies. His work has significantly impacted the advancement of scientific instrumentation, particularly in the areas of microscopy and laser stabilization.

Collaborations

Tuck Wah Ng has collaborated with notable colleagues, including Hiang How Caleb Heng and Hui Tong Chua, enhancing the scope and impact of his research endeavors.

Conclusion

Tuck Wah Ng's innovative contributions to scanning probe