Abstract
A high-sensitivity small-angle sensor based on surface plasmon resonance technology and heterodyne interferometry is proposed that uses a new technique with two right-angle prisms. Interestingly, the technique provides a novel method for designing small-angle sensors with high sensitivity and high resolution. Its theoretical resolution can reach 1.2 × 10-7 rad over the measurement range of -0.15° ≤ θ ≤ 0.15°. The method has some merits, e.g., a simple optical setup, easy operation, high resolution, high sensitivity, and rapid measurement. Its feasibility is demonstrated.
Original language | English |
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Pages (from-to) | 6702-6707 |
Number of pages | 6 |
Journal | Applied Optics |
Volume | 45 |
Issue number | 26 |
DOIs | |
State | Published - 10 Sep 2006 |