Ilamaran Sivarajah

Feature Writer

Ph.D Physics

Ilamaran Sivarajah is an experimental atomic/molecular/optical physicist by training who works at the interface of quantum technology and business development.

Articles from Ilamaran

A Guide to Laser Beam Shaping Techniques

The characteristic properties of a laser beam can be modified by beam-shaping techniques to meet the demands of specific applications. In order to achieve a desirable beam profile that is maintained over the intended propagation distance, beam shapers redistribute the irradiance of an optical beam with appropriate adjustments of its phase.

15 May 2023

Scientists Push the Sensitivity of Single-Atom Vibrational Spectroscopy to the Chemical-Bonding Scale

A new collaborative study between Vanderbilt University and the University of the Chinese Academy of Sciences has observed the vibrational patterns in the conducting materials silicon and graphene, which is a breakthrough in the field.

10 May 2023

Optical Amplifiers and Modulators: Enabling High-Speed Communication Technologies

Optical amplifiers and modulators play an essential role in how data and information are rapidly transferred in a growing, interconnected, and interdependent world. Therefore, advancements in the performances of these two optical components are critically important to accommodate the growing networks of optical communication structures.

27 Apr 2023

Trace Gas Analysis with Non-Contact Quartz-Enhanced Photoacoustic Spectroscopy

For the analysis of trace gases, a non-contact quartz-enhanced photoacoustic spectroscopy (NC-QEPAS) method has been demonstrated. The NC-QEPAS seeks to address the limitations of the quartz tuning fork (QTF), which is constrained in its application for sensing corrosive and dusty gas.

13 Apr 2023

What Are Semiconductor Lithography Systems Used For?

The foundations of the digital world are built on the performances of semiconductor-integrated chips. Semiconductor lithography is the process by which the functional structures within the integrated circuits are patterned.

4 Apr 2023

Scientists Publish New Review of Lead-Free Perovskite Based Heterojunction Photodetectors

A recently published review on Applied Surface Science Advances has summarized the current state of Lead-Free Perovskite Based Heterojunction Photodetectors.

28 Mar 2023

Notable Winners of the Free Electron Laser Prize

The Free Electron Laser (FEL) Award is given to a person or people who have made a substantial contribution to the development of the free-electron laser field. The Award also offers the international FEL community the chance to honor one or more of its peers for their remarkable accomplishments.

24 Mar 2023

Spectroscopic and Microscopic Analyses of Roman Mosaic Glass Tesserae

A new study combining spectroscopic and microscopic analysis has confirmed the constituents and age of a Roman Mosaic Glass Tesserae found in the Morbio Inferiore municipality in the Canton Ticino region in Switzerland. A preprint of this yet-to-be-published research paper can be found on The Social Science Research Network (SSRN).

13 Mar 2023

Optical Neural Networks Using Synthetic Dimensions

A new theoretical study suggests building an optical neural network architecture for deep learning using the concept of a temporal synthetic dimension. The synthetic dimensions are created by the arrival times of optical pulses in a single-ring resonator.

7 Mar 2023