Electrocatalytic activity and interconnectivity of Pt nanoparticles on multiwalled carbon nanotubes for fuel cells

S Wang, SP Jiang, TJ White, J Guo… - The Journal of Physical …, 2009 - ACS Publications
Platinum nanoparticles (NPs) have been successfully assembled on noncovalently poly (
diallyldimethylammonium chloride)-functionalized multiwalled carbon nanotubes (MWCNTs) …

Submicrometer-scale pattern generation via maskless digital photolithography

M Kang, C Han, H Jeon - Optica, 2020 - opg.optica.org
Maskless photolithography based on digital micromirror devices (DMDs) is considered the
next-generation low-cost lithographic technology. However, DMD-based digital …

Taming of random lasers

M Lee, S Callard, C Seassal, H Jeon - Nature Photonics, 2019 - nature.com
Random lasers are fascinating devices due to the absence of a conventional cavity structure
and their counterintuitive lasing mechanism. However, they are also notorious for their …

Photonic crystal L3 cavity laser fabricated using maskless digital photolithography

M Kang, H Jin, H Jeon - Nanophotonics, 2022 - degruyter.com
Projection photolithography using an extreme-ultraviolet light source is the core technology
that has enabled patterning on the scale of a few nanometers that is required for modern …

Anderson localizations and photonic band-tail states observed in compositionally disordered platform

M Lee, J Lee, S Kim, S Callard, C Seassal, H Jeon - Science Advances, 2018 - science.org
Anderson localization in random structures is an intriguing physical phenomenon, for which
experimental verifications are far behind theoretical predictions. We report the first …

Fiber-coupled surface-emitting photonic crystal band edge laser for biochemical sensor applications

S Kim, J Lee, H Jeon, HJ Kim - Applied Physics Letters, 2009 - pubs.aip.org
We report on a refractive index sensor platform based on a surface-emitting photonic crystal
(PC) Γ-point band edge laser (BEL). A simple butt-end fiber coupling makes the BEL system …

Colloidal quantum dot lasers built on a passive two-dimensional photonic crystal backbone

H Chang, K Min, M Lee, M Kang, Y Park, KS Cho… - Nanoscale, 2016 - pubs.rsc.org
We report the room-temperature lasing action from two-dimensional photonic crystal (PC)
structures composed of a passive Si3N4 backbone with an over-coat of CdSe/CdS/ZnS …

High-efficiency photonic crystal microlaser integrated with a passive waveguide

H Watanabe, T Baba - Optics express, 2008 - opg.optica.org
A GaInAsP photonic crystal slab microlaser with an integrated passive waveguide was
fabricated by a MOCVD butt-joint regrowth process. The boundary between the active and …

Two-dimensional surface emitting photonic crystal laser with hybrid triangular-graphite structure

L Javier Martinez, B Alén, I Prieto, JF Galisteo-López… - Optics express, 2009 - opg.optica.org
We present laser emission of a compact surface-emitting micro laser, optical pumped and
operating at 1.5 µ m at room temperature. A two-dimensional photonic crystal lattice …

Probing carrier populations in ZnO quantum wells by screening of the internal electric fields

A Chernikov, S Schäfer, M Koch, S Chatterjee… - Physical Review B …, 2013 - APS
We investigate the carrier relaxation from (ZnMg) O barrier layers into a ZnO quantum well
(QW) by following the dynamic screening of its built-in electric fields. The respective …