We demonstrate an effective approach of mode suppression by simply using a tungsten probe to destroy the external neck surface of polymer microbottle resonators.The higher-order bottle modes with large axial orders,sp...We demonstrate an effective approach of mode suppression by simply using a tungsten probe to destroy the external neck surface of polymer microbottle resonators.The higher-order bottle modes with large axial orders,spatially located around the neck surface of the microresonator,will suffer large optical losses.Thus,excitation just with an ordinary free-space light beam will ensure direct generation of single fundamental bottle mode lasers.This method is with very low cost and convenient and can obtain high side-mode suppression factors.Our work demonstrated here may have promising applications such as in lasing and sensing devices.展开更多
基金supported by the National Natural Science Foundation of China(NSFC)(Nos.11604210and 11674230)the Shanghai Rising-Star Program(No.18QA1403200)
文摘We demonstrate an effective approach of mode suppression by simply using a tungsten probe to destroy the external neck surface of polymer microbottle resonators.The higher-order bottle modes with large axial orders,spatially located around the neck surface of the microresonator,will suffer large optical losses.Thus,excitation just with an ordinary free-space light beam will ensure direct generation of single fundamental bottle mode lasers.This method is with very low cost and convenient and can obtain high side-mode suppression factors.Our work demonstrated here may have promising applications such as in lasing and sensing devices.
