Park, Kichul Lee, Junsu Lee, Young Tack Choi, Won-Kook Lee, Ju Han Song, Yong-Won 2024-01-20T05:32:57Z 2024-01-20T05:32:57Z 2021-09-03 2015-12 0003-3804 https://pubs.kist.re.kr/handle/201004/124728 Black phosphorus, or BP, has found a lot of applications in recent years including photonics. The most recent studies have shown that the material has an excellent optical nonlinearity useful in many areas, one of which is in saturable absorption for passive mode-locking. A direct interaction scheme for mode-locking, however, has a potential to optically cause permanent damage to the already delicate material. Evanescent field interaction scheme has already been proven to be a useful method to prevent such danger for other 2-dimensional nanomaterials. In this report, we have utilized the evanescent field interaction to demonstrate that the optical nonlinear characteristics of BP is sufficiently strong to use in such an indirect interaction method. The successful demonstration of the passive mode-locking operation has generated pulses with the pulse duration, repetition rate, and time bandwidth product of 2.18 ps, 15.59 MHz, and 0.336, respectively. English WILEY-V C H VERLAG GMBH GRAPHENE PHOTONICS ELECTRIC-FIELD SEMICONDUCTOR NANOMATERIAL MOS2 Black phosphorus saturable absorber for ultrafast mode-locked pulse laser via evanescent field interaction Article 10.1002/andp.201500245 1 ANNALEN DER PHYSIK, v.527, no.11-12, pp.770 - 776 ANNALEN DER PHYSIK 527 11-12 770 776 scie scopus 000367673000003 2-s2.0-84955208770 Physics, Multidisciplinary Physics Article GRAPHENE PHOTONICS ELECTRIC-FIELD SEMICONDUCTOR NANOMATERIAL MOS2 black phosphorus saturable absorbers fiber lasers mode-locking ultrafast pulses