BEGIN:VCALENDAR VERSION:2.0 PRODID:-//hacksw/handcal//NONSGML v1.0//EN TZ:+00 BEGIN:VEVENT DTSTART:20190301T000000Z DTEND:20190301T000000Z SUMMARY:2nd Photonic and OptoElectronic Materials Conference: Oral abstract deadline due before 1st March 2019 LOCATION:University College London,London,United Kingdom END:VEVENT END:VCALENDAR