New platform integrates THz photonics with planarized low-loss polymers

https://phys.org/news/2022-12-platform-thz-photonics-planarized-low-loss.html

"Placing bonding wires on top of extended top metallization over passive BCB-covered area prevents formation of defects or local hotspots... narrow waveguides well below bonding wire size.... narrow waveguide width efficient selection mechanism for fundamental transversal lasing mode and beneficial for heat dissipation and high-temperature continuous wave operation... extended contact facilitates lateral heat flow and eases heat extraction... improved maximum operating temperature"