Abstract
This Letter designed an extra high reflection filter by using multilayers with a negative k, commonly referred to as gain layers. The gain layer was fabricated by embedding CdS quantum dots in a dielectric layer. Experimental results indicated that the effective k value is around -0.0008. The associated optical and physical properties were also discussed. The application of gain layers is very forward-looking.
Original language | English |
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Pages (from-to) | 3377-3379 |
Number of pages | 3 |
Journal | Optics Letters |
Volume | 38 |
Issue number | 17 |
DOIs | |
State | Published - 1 Sep 2013 |