Abstract
We have measured the optical and mechanical loss of commercial silicon nitride membranes. We find that 50 nm thick, 1 mm2 membranes have mechanical Q > 106 at 293 K, and Q > 107 at 300 mK, well above what has been observed in devices with comparable dimensions. The near-IR optical loss at 293 K is less than 2× 10-4. This combination of properties make these membranes attractive candidates for studying quantum effects in optomechanical systems.
Original language | English (US) |
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Article number | 103125 |
Journal | Applied Physics Letters |
Volume | 92 |
Issue number | 10 |
DOIs | |
State | Published - 2008 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)