Bükümlü Işıkların Yarıiletken Üzerindeki Elektriksel Etkisinin Deneysel Olarak İncelenmesi

Öz

Orbital Açısal Momentum (OAM) ışınları, optik alanın dairesel simetrisini bozan ve ışığın açısal momentumunu taşıyan özel bir ışık türüdür. Bu ışınlar, optik cihazlarda ve iletişimde yeni uygulamalara olanak sağlamaktadır. Bunun yanı sıra, OAM ışınları madde ile etkileşimi sonucunda hem foton enerjisi hem de açısal momentum aktarabilmeleri, daha yüksek akımların oluşumunu sağlamaktadır. Böylece OAM ışınları fotovoltaik verimliliğin artırılmasında ve daha yüksek enerjilerin elde edilmesinde kullanılabileceği göstermektedir. OAM ışınlarının fotovoltaik verimlilik üzerine etkisi, son yıllarda araştırma konusu olmuştur. Bazı çalışmalar, OAM ışınlarının güneş hücrelerinin elektrik üretimini artırabileceğini teorik olarak göstermiştir. Bunun nedeni, OAM ışınlarının elektrona foton enerjisine ek olarak açısal momentum kazandırmasıdır. Bu çalışmanın amacı, SLM (Spatial Light Modulator) kullanarak üretilen OAM ışın spotunun, yarıiletken bir güneş paneli üzerindeki elektriksel etkisini deneysel olarak incelemektir. OAM ışını fotovoltaikler üzerine düşürülerek daha yüksek akımlar elde edilmiştir. Akım artışı %18,2 oranında gerçekleşmiştir.

Anahtar Kelimeler

• Fotovoltaik
• Işık-madde etkileşimi
• Orbital Açısal Momentum

Experimental Investigation of the Electrical Effect of Twisted Lights on a Semiconductor

Öz

Orbital Angular Momentum (OAM) beams are a special type of light that disrupts the circular symmetry of the optical field and carries the angular momentum of light. These beams enable new applications in optical devices and communication. In addition, as a result of their interaction with matter, OAM beams can transfer both photon energy and angular momentum, enabling the formation of higher currents. Thus, it has been shown that OAM beams can be used to obtain higher energies in increasing photovoltaic efficiency. The effect of OAM beams on photovoltaic efficiency has been a research topic in recent years. Some studies have theoretically shown that OAM beams can increase the electrical production of solar cells. The reason for this is that OAM beams impart angular momentum to electrons in addition to photon energy. The aim of this study is to experimentally investigate the electrical effect of an OAM beam spot produced using an SLM (Spatial Light Modulator) on a semiconductor solar panel. Higher currents were obtained by dropping the OAM beam onto photovoltaics. The current increase was 18.2%.

Anahtar Kelimeler

• Photovoltaics
• Light-matter interaction
• Orbital Angular Momentum

Kaynakça

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