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DTSTAMP:20260727T215300Z
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DTSTART:20260916T120000Z
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DESCRIPTION:Title: Femtosecond laser fabricated glass photonic integrated c
 ircuits for stuctured illumination microscopySpeaker: Francesca Bragheri (
 The Institute for Photonics and Nanotechnologies\, National Research Counc
 il)Date: Wednesday\, 16 September 2026\, 16:00 Central European Summer Tim
 e (CEST) Structured illumination microscopy (SIM) is a powerful imaging te
 chnique that enables resolution enhancement beyond the diffraction limit w
 hile preserving low phototoxicity and compatibility with conventional fluo
 rescence microscopy. Traditional SIM implementations\, however\, typically
  rely on complex and bulky optical systems\, limiting their robustness and
  widespread adoption. In this talk\, femtosecond laser micromachining (FLM
 ) will be presented as a versatile enabling technology for the fabrication
  of three dimensional integrated photonic circuits in glass for structured
  illumination microscopy. By inducing localized refractive index modificat
 ions inside transparent materials\, FLM enables the direct writing of buri
 ed optical waveguides\, directional couplers\, and interferometric structu
 res with true three-dimensional design freedom and micrometric precision. 
 When combined with selective chemical etching (FLICE)\, the same technolog
 y also allows the fabrication of reflective micro-optical elements\, inclu
 ding flat and curved mirrors\, which are subsequently metal-coated to guid
 e the beams and generate structured illumination patterns. Thermal phase s
 hifters integrated onto the chip surface provide fast\, dynamic control of
  the relative phase between the interfering beams without mechanical movem
 ent\, enabling the pattern translation required for SIM image reconstructi
 on. Different device architectures will be presented\, ranging from compac
 t two-output interferometers to more sophisticated multi-beam photonic cir
 cuits capable of generating both two- and three-dimensional interference p
 atterns. The resulting glass chips can be directly interfaced with convent
 ional widefield microscopes\, transforming them into compact and reconfigu
 rable SIM platforms. Overall\, the presented work highlights the unique ca
 pabilities of femtosecond laser micromachining for the rapid prototyping a
 nd fabrication of complex three-dimensional integrated photonic systems\, 
 opening new opportunities for compact\, alignment-free\, and field-deploya
 ble super-resolution imaging devices. 																																				
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SUMMARY:Laserlab-Europe Talk: Femtosecond laser fabricated glass photonic i
 ntegrated circuits for stuctured illumination microscopy
URL;VALUE=URI:https://laserlab-europe.eu/event/laserlab-europe-talk-femtose
 cond-laser-fabricated-glass-photonic-integrated-circuits-for-stuctured-ill
 umination-microscopy/
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