Ronian's co-authored article on flat-field illumination in fluorescence microscopy has been featured on the cover of Microscopy and Analysis! Written together with his colleague at V-BMB Pte Ltd, Sarvesh Satpute, the article discusses how to achieve > 95% uniformity in the fluorescence image of bio-samples in a microscope system using commercial optics. Read the full article on page 42!
Ronian has been selected to be among the Photonics100 2026!
"Launched in 2023, The Photonics100 recognises 100 innovators each year who are shaping the global photonics landscape. Honourees are selected for their pioneering work in academia, industry, and entrepreneurship, spanning applications from quantum to biomedical, and lasers to optical communications."
- Andrew Knight, Audience Engagement Manager, Electro Optics (andrew.knight@europascience.com)
“Every challenge photonics faces — whether technical, economic, or political — is matched by an opportunity to innovate...The Photonics100 celebrates those leading the way.”
- Warren Clark, Managing Director of Europa Science, publisher of Electro Optics.
The Institute of Physics (IOP) interviews Ronian Siew about his new book, Modern Classical Optical System Design: Fundamentals, techniques, tips, and tricks. In the interview, Ronian talks about 'diversity and inclusiveness' in learning optical system design, and touches on the question of whether or not artificial intelligence (AI) will take over the job of the optical system designer. Click below to watch the interview on YouTube!
Under the kind invitation of Dr. Adrian E. Villanueva Luna, the INAOE, and the optical department chaired by Dr. Fermin Salomon Granados Agustin, Ronian gave an invited talk on Basics of Optical Systems in Real-Time PCR Instruments for Virus Detection. The talk was part of a guest speakers list for the graduate course on Spectroscopic Techniques for Medical Diagnostics, taught by Dr. Adrian Villanueva. The talks and the course occur in celebration of over 50 years of the optical department at INAOE, which is a distinguished institute with a rich history in contributions to the advancement of optical research.
New! Modern Classical Optical System Design: Fundamentals, Techniques, Tips, and Tricks has been published by IOP Publishing! Click the cover below to link to the book's webpage, where supplementary material (Ansys Zemax OpticStudio files) are available for free download. Click HERE to purchase the book direct from the publisher's website. Click HERE to get the hardbound copy from Amazon!
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| Courtesy of IOP Publishing. |
Ronian's latest paper has been published in the European Journal of Physics! In this new work, Ronian extends conventional optical radiometry to the case of non-stigmatic, non-aplanatic, and non-isoplanatic lenses. Click HERE to read the open-access author-accepted preprint!
Ronian will be giving an invited talk at the 2021 Frontiers in Optics and Photonics Symposium organized by the Indian Institute of Technology Delhi! Click HERE to download the slides!
Wrapping up the year in 2020, Ronian publishes a technical note describing how to apply a simple formula to compute the relative illumination of an un-vignetted imaging lens system in terms of image distortion, differential distortion, chief ray angle (in object space), and the size and shape of the entrance pupil.
Also, click on the image below to read a Linkedin version of the glass selection method, complete with a simple explanation, and Zemax lens files.
Also, click on the image below to read about Ronian's simple "home-made" optics experiment where he demonstrates this focusing effect using a magnifying glass and an ordinary LED desk lamp!
