High-quality factor in a symmetrical metal-cladding optical waveguide.
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| Title: | High-quality factor in a symmetrical metal-cladding optical waveguide. |
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| Authors: | Lai, Yi1,2 (AUTHOR), Sun, Zhangchi3 (AUTHOR), Ru, Dan1 (AUTHOR), Ding, Chenhuan1 (AUTHOR), Ding, Ling1 (AUTHOR), Wang, Chen1 (AUTHOR), Luo, Cenxin4 (AUTHOR), Dai, Hailang5 (AUTHOR) hailangdai@sjtu.edu.cn, Li, He1 (AUTHOR) lihe1972@hotmail.com |
| Source: | Journal of Nonlinear Optical Physics & Materials. Aug2026, Vol. 35 Issue 5, p1-11. 11p. |
| Subjects: | Quality factor, Metal cladding, Electromagnetic interactions, Attenuated total reflectance, Nonlinear optics, Optical waveguides, Microresonators (Optoelectronics) |
| Abstract: | The enhanced light–matter interaction provides a significant way to reveal information about the matter. Within a confining light in a small-sized microcavity is an important issue in both nonlinear optics and waveguides. Here, we present a symmetrical metal-cladding optical waveguide (SMCOW) with a high-quality factor Q which possesses numerous superior performances, such as high sensitivity and high power density, due to the excited ultrahigh-order modes oscillating between the top and bottom layer at a very small incident angle to standing wave field. The relationship between thickness, angle and Q is obtained from experimental detection and theoretical simulation, with a high-quality factor Q = 1. 1 × 1 0 5 . Meanwhile, we have deduced the equation of an important parameter, the half-width W of the attenuated total reflectance (ATR) peak, which is dependent on the imaginary part of the propagation constant Im (β L) and incident angle ATR . [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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