CAJ | 학술논문

近场光镊是基于近场光学理论建立起来的可以对微粒实现稳定捕获和操作的新技术，相较基于单光束梯度力的传统远场光镊，近场光镊克服了光学分辨率衍射极限和热效应等众多因素的限制，可以实现对纳米量级微小粒子的捕获和操控，在物理学、细胞工程、生物医学等领域备受关注。首先阐述了基于倏逝场近场光镊的模型和捕获的基本原理，详述了棱镜全反射光镊、探针型光镊、纳米孔径光镊、聚焦倏逝场光镊、微纳光纤光镊、以及微谐振腔耦合结构型近场光镊的研究进展。最后，重点介绍了光镊在生物医学领域的应用。
근장광섭시기우근장광학이론건립기래적가이대미립실현은정포획화조작적신기술，상교기우단광속제도력적전통원장광섭，근장광섭극복료광학분변솔연사겁한화열효응등음다인소적한제，가이실현대납미량급미소입자적포획화조공，재물이학、세포공정、생물의학등영역비수관주。수선천술료기우숙서장근장광섭적모형화포획적기본원리，상술료릉경전반사광섭、탐침형광섭、납미공경광섭、취초숙서장광섭、미납광섬광섭、이급미해진강우합결구형근장광섭적연구진전。최후，중점개소료광섭재생물의학영역적응용。
Near-field optical tweezers is a new technology based on the near-field optical theory, which can stably trap particles. Compared with conventional far-field optical tweezers based on the single-beam gradient force, near-field optical tweezers which overcomes the diffraction limitation of near-field light optical resolution, thermal effects and many other disadvantages, can achieve the capture on particles in nano order, and have aroused much attention in the field of physics, cell engineering, biomedicine, and so on. Firstly, the model of near-field optical tweezers based on evanescent field and the basic principles of trapping were described. Secondly, the development of total reflection prism optical tweezers, probe type optical tweezers, nano-pore optical tweezers, focused evanescent field optical tweezers, micro-nano fiber optical tweezers, and micro-resonator coupling structure type near-field optical tweezers was introduced. In the end, the applications of optical tweezers in the field of biomedicine were mainly introduced.