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Digital Holographic Studies of Cloud and Precipitation Microphysics
- Date: Thu, 2 Jun 2022, 11:00 am - 12:00 pm
- Location: The Braggs Building, Level 2 and Zoom
A lack of high-resolution observations of clouds and precipitation remains one of the largest
sources of uncertainty in climate and weather models.
[Read more about Digital Holographic Studies of Cloud and Precipitation Microphysics]
Photonic Integrated Circuits and their Applications
- Date: Thu, 9 Jun 2022, 11:00 am - 12:00 pm
- Location: The Braggs Building, Level 2
Photonic integrated circuits are transitioning from speculative research to a mature industrially scalable platform supporting integration of active and passive optical components on a single chip.
[Read more about Photonic Integrated Circuits and their Applications]
Development of Bi/Er co-doped optical fibers with ultra-broadband near infrared luminescence
- Date: Thu, 16 Jun 2022, 11:00 am - 12:00 pm
- Location: The Braggs Building, Level 2
To improve capacity of photonic networks based on wavelength division multiplexing (WDM), Bi/Er co-doped silica optical fibers (BEDFs) have been proposed and developed for wideband and flat-gain fiber amplifiers operating the whole or the Er-doped fibers uncovered spectral region of 1200 nm to 1700 nm. Ultrabroadband luminescence has been demonstrated in BEDFs fabricated by modified chemical vapor deposition (MCVD) and in-situ doping techniques, and by 3D printed preform. Several novel and sophisticated techniques have been developed for the fabrication and characterization of the BEDFs. For controlling the performance of BEDFs, post-treatment processes using high temperature and laser light have been introduced.
International Year of Glass – research at IPAS on glass science, technology and art
- Date: Thu, 23 Jun 2022, 11:00 am - 12:00 pm
- Location: The Braggs Building, Level 2
The seminar will first give an overview on glass research at IPAS, highlighting the intricate connection between glass science and technology and even art. One example, and possibly the most famous example, is gold ruby glass, where the intriguing deep red colour is produced by gold nanoparticles. Glass art using gold ruby type glasses has been made for over 2000 years, but only 100 years ago, the scientific discovery of gold nanoparticles as the source of the colour was achieved. The fascination of the science underlying gold nanoparticles in glass is still lively today. Another, recent example of the fine line between glass science and art is the invention and development of glass doped with diamond nanoparticles for quantum sensing applications. This research inspired an artist to create a new type of glass art, and vice versa the glass artist’s method of incorporating nanocrystal in glass inspired glass scientists to advance their diamond-doped glass based quantum sensor.
