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The effect of the substrate on the damage threshold of gold nano-antennas by a femtosecond laser

التفاصيل البيبلوغرافية
العنوان: The effect of the substrate on the damage threshold of gold nano-antennas by a femtosecond laser
المؤلفون: Monir Morshed, Md Ahasanul Haque, Haroldo T Hattori
المصدر: Materials Research Express, Vol 7, Iss 9, p 096201 (2020)
بيانات النشر: IOP Publishing, 2020.
سنة النشر: 2020
المجموعة: LCC:Materials of engineering and construction. Mechanics of materials
LCC:Chemical technology
مصطلحات موضوعية: diamond substrate, high fluence, surface plasmon resonance, Materials of engineering and construction. Mechanics of materials, TA401-492, Chemical technology, TP1-1185
الوصف: Gold nano-antennas with silica substrate may not be suitable for high power applications such as heat resisted magnetic recording, solar thermophotovoltaics, and nano-scale heat transfer systems. When a laser beam reaches to these nano-antennas, part of the light is absorbed by the metallic regions, leading to a temperature rise of the device. If these devices reach a temperature beyond its Tamman temperature (the temperature at which sintering of atoms or molecules start to occur), the antenna can be damaged. One strategy to allow the antenna to work at higher fluences (energy density) is to employ substrates that can quickly carry the heat away from the antennas. In this paper, we show that high thermal conductivity substrates, such as diamond, can allow the antenna to withstand 20 times higher fluence than a low thermal conductivity silica substrate.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2053-1591
Relation: https://doaj.org/toc/2053-1591
DOI: 10.1088/2053-1591/abb4fb
URL الوصول: https://doaj.org/article/71bd1af46b2f4cecbb3b590a595f6e6e
رقم الانضمام: edsdoj.71bd1af46b2f4cecbb3b590a595f6e6e
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:20531591
DOI:10.1088/2053-1591/abb4fb