🇨🇦 Scientist and Entrepreneur working in #photonics • previously @McGill, @Harvard, @uOttawa • 🏳️‍🌈🏳️‍⚧️ allyhttps://bsky.app/profile/oradr.bsky.socialhttps://bsky.app/profile/oradr.bsky.social/post/3mk6c2qfv6s26Kind of wild to announce but, I just got another paper published! First experimental demonstration of a spaceplate, with a compression factor of up to 175. Check it out, it’s real!! #photonics https://www.nature.com/articles/s41467-026-71500-123 Apr 2026 15:07 +0000at://did:plc:4fipdtipbe2wml2xuy6gb7qw/app.bsky.feed.post/3mk6c2qfv6s26https://bsky.app/profile/oradr.bsky.social/post/3lesfkjfzu22lHow can quantum entanglement be instantaneous (so, “faster” than the speed of light) while also not violating causality? John Bell gave a classic analogy: "When the Queen dies in London, the Prince of Wales, lecturing in Australia, becomes instantaneously King".03 Jan 2025 01:05 +0000at://did:plc:4fipdtipbe2wml2xuy6gb7qw/app.bsky.feed.post/3lesfkjfzu22lhttps://bsky.app/profile/oradr.bsky.social/post/3ldmjzl4edk2vTIL that the no-hair theorem actually hasn't been fully proven quite yet. It has in some limited cases, and even in the case of gravity without electromagnetism, it has only been partially resolved. https://en.wikipedia.org/wiki/No-hair_theorem18 Dec 2024 23:44 +0000at://did:plc:4fipdtipbe2wml2xuy6gb7qw/app.bsky.feed.post/3ldmjzl4edk2vhttps://bsky.app/profile/oradr.bsky.social/post/3ld4e6ldaps2zHaven’t mentioned it publicly, but I’m looking for my next job! Please reach out if you hear of any interesting opportunities. You can learn more about who I am and what I can do at my portfolio site: reshef.ca http://reshef.ca12 Dec 2024 13:17 +0000at://did:plc:4fipdtipbe2wml2xuy6gb7qw/app.bsky.feed.post/3ld4e6ldaps2zhttps://bsky.app/profile/oradr.bsky.social/post/3lcj33j7nds2vA great video on extreme nonlinear optics and the GZK limit (?), featured on the xkcd youtube channel. What if we shined collimated gamma ray bursts on to the moon? https://www.youtube.com/watch?v=jgafb8G7i4o04 Dec 2024 21:14 +0000at://did:plc:4fipdtipbe2wml2xuy6gb7qw/app.bsky.feed.post/3lcj33j7nds2vhttps://bsky.app/profile/oradr.bsky.social/post/3lcbskf57zc2qMindblowing that we invented this word, and now it's part of the sum of human knowledge 💡01 Dec 2024 23:52 +0000at://did:plc:4fipdtipbe2wml2xuy6gb7qw/app.bsky.feed.post/3lcbskf57zc2qhttps://bsky.app/profile/oradr.bsky.social/post/3lbz65pyhf22yLots of new people joining Bluesky and following me! I’m happy to follow most of you back… you should at the very least complete your profile and maybe make one post with a general introduction so I know who you are. Most people won’t follow empty accounts back ¯\_(ツ)_/¯28 Nov 2024 13:26 +0000at://did:plc:4fipdtipbe2wml2xuy6gb7qw/app.bsky.feed.post/3lbz65pyhf22yhttps://bsky.app/profile/oradr.bsky.social/post/3lbdie64pd22clol wut? I thought threads was enormous [contains quote post or other embedded content]19 Nov 2024 22:30 +0000at://did:plc:4fipdtipbe2wml2xuy6gb7qw/app.bsky.feed.post/3lbdie64pd22chttps://bsky.app/profile/oradr.bsky.social/post/3lawouighyc23Congrats to Jeff and all his group members! I remember first discussing this over lunch when I was still at uO. So cool to see they finally succeeded! [contains quote post or other embedded content]14 Nov 2024 20:22 +0000at://did:plc:4fipdtipbe2wml2xuy6gb7qw/app.bsky.feed.post/3lawouighyc23https://bsky.app/profile/oradr.bsky.social/post/3lau4lyp2n222For those of you who have been around bsky for a while, it’s worth your wild to try the Sky Follower Bridge again. There’s way more people to re-follow from Twitter13 Nov 2024 19:50 +0000at://did:plc:4fipdtipbe2wml2xuy6gb7qw/app.bsky.feed.post/3lau4lyp2n222https://bsky.app/profile/oradr.bsky.social/post/3lapgwfq2ns2qIt’s so hard not to be cynical11 Nov 2024 23:11 +0000at://did:plc:4fipdtipbe2wml2xuy6gb7qw/app.bsky.feed.post/3lapgwfq2ns2qhttps://bsky.app/profile/oradr.bsky.social/post/3lamaieoofc2m💡Posted on Reddit today, the “Brocken Spectre”. Supposedly it’s a type of “Glory”: https://en.wikipedia.org/wiki/Glory_(optical_phenomenon)10 Nov 2024 16:38 +0000at://did:plc:4fipdtipbe2wml2xuy6gb7qw/app.bsky.feed.post/3lamaieoofc2mhttps://bsky.app/profile/oradr.bsky.social/post/3l7l5iopijc2xThis article is a must-read for anyone in photonics. I wish I was given something like this as a first year grad student. It’s in plain English and clearly outlines challenges and opportunities. Published in Nat Rev Physics, sharing the arxiv version here: arxiv.org/abs/2308.00088 https://arxiv.org/abs/2308.0008828 Oct 2024 12:46 +0000at://did:plc:4fipdtipbe2wml2xuy6gb7qw/app.bsky.feed.post/3l7l5iopijc2x