tarumaraja, k.a., menon, p.s. , said, f.a. , jamil, n.a., ehsan, a.a., shaari, s., majlis, b.y., jalar, a..  (2016).  fdtd numerical analysis of spr sensing using graphene-based photonic crystal.  - 2th ieee international conference on semiconductor electronics, icse 2016.  79-81. 

muhammad syafiq rahim, norasyikin selamat, jumril yunas and abang annuar ehsan.  (2016).  effect of geometrical shapes on 3d hydrodynamic focusing of a microfluidic flow cytometer.  - 12th ieee international conference on semiconductor electronics (icse 2016).  113-116. 

norasyikin selamat, muhammad syafiq rahim and abang annuar ehsan.  (2016).  effect of microchannel sizes on 3d hydrodynamic focusing of a microflow cytometer.  - 12th ieee international conference on semiconductor electronics (icse 2016).  109-112. 

abdullah m.n., shaari s., ehsan a.a., menon s., zakaria o..  (2015).  measurement of nonlinear refractive index based on multiple configuration of fbg in generating multi wavelength.  - proceedings of spie - the international society for optical engineering.  . 

juhari n., menon p.s., ehsan a.a., shaari s..  (2015).  16-channel arrayed waveguide grating (awg) demultiplexer design on soi wafer for application in cwdm-pon.  - proceedings of spie - the international society for optical engineering.  . 

juhari n., menon p.s., ehsan a.a., shaari s..  (2015).  characterization of optical coupling loss for awg demultiplexer on soi using butt-coupling method.  - 2015 international conference on industrial instrumentation and control, icic 2015.  1060-1064. 

nurjuliana juhari, p susthitha menon, abang annuar ehsan and sahbudin shaari.  (2015).  16 channel arrayed waveguide grating (awg) demultiplexer design on soi wafer for application in cwdm-pon.  - proceedings of spie: international seminar on photonics, optics and its applications (isphoa2014), bali, indonesia.  . 

nurjuliana juhari, p susthitha menon, abang annuar ehsan and sahbudin shaari.  (2015).  design and application of 8-channel soi-based awg demultiplexer for cwdm- system.  - national physics conference 2014 (perfik 2014).  140001-1-140001-5. 

mohd nizam abdullah, sahbudin shaari, abang annuar ehsan, susthitha menon, osman zakaria, nazri marzuki.  (2014).  nonlinear refractive index on multiwavelength generation through mismatch photonic crystal fibre from transmission wavelength.  - proceedings of spie - the international society for optical engineering.  91280U 1-6. 

abang annuar ehsan.  (2014).  rapid prototyping of plastic optical fiber coupler.  - tensymp ieee region 10 technical symposium 2014.  306-309. 

sabiran abubakar, norhana arsad, sayidatul nadia, mohammad syuhaimi ab-rahman, sahbudin shaari, abang annuar ehsan dan norlimah arsad.  (2014).  polyethylene flow-injection for nitrite detection: spectrotrophotometric method.  - 2014 ieee 5th international conference on photonics (icp).  147-149. 

sabiran abu bakar, norhana arsad, sayidatul nadia, abang anuar ehsan, mohd syuhaimi ab rahman dan norlimah arsad.  (2013).  development of pof flow-injection for spectrophotometric determination of nitrite.  - ieee international conference on smart instrumentation, measurement and applications (icsima).  . 

abdullah, m.n., shaari, s., ehsan, a.a., menon, p. s., nasir, m., abidin, z., abidin, a.r.z..  (2013).  c band amplification through fibre ring laser in generating multiwavelength..  - proceedings of spie - the international society for optical engineering.  . 

abang annuar ehsan, mohd kamil abd rahman.  (2012).  acrylic-based 1×2 plastic optical fiber coupler device manufacturing using egx400 desktop engraver system.  - 2011 international conference on manufacturing science and technology, icmst 2011;singapore (advanced materials research).  . 

m nizam a, n arsad, hanim ar, s.shaari, a annuar, m nasir za,a rashid za.  (2012).  effect of attenuation on four-wave mixing generation.  - 2012 international conference on applied materials and electronics engineering, amee 2012;hongkong (advanced materials research).  . 

ehsan a.a., abd rahman m.k..  (2012).  metal-based asymmetric hollow waveguide and y-branch plastic optical fiber couplers.  - 2012 international symposium on photonics and optoelectronics, sopo 2012;shanghai.  . 

ehsan, a.a., abd rahman, m.k..  (2011).  acrylic-based 1x2 y-branch pof coupler with high index contrast waveguide taper.  - conference: conference on passive components and fiber-based devices vii location: shanghai, peoples r china (proceedings of spie - the international society for optical engineering).  . 

khir m.f.a., bahari i., ehsan a.a..  (2011).  two way quantum key distribution protocol with weak+vacuum decoy state.  - 2011 ieee 2nd international conference on photonics, icp 2011;kota kinabalu, sabah.  . 

kamil abd-rahman m., syafiqah mohamed-kassim n., annuar ehsan a., yusoff m.h.m..  (2011).  multimode asymmetrical optical power splitter utilizing hollow structured-waveguide.  - progress in electromagnetics research symposium, piers 2011 marrakesh; marrakesh.  . 

abang annuar ehsan and mohd. kamil abd. rahman.  (2010).  plastic optical fiber coupler for next generation: do it yourself optical component.  - proceedings of the ieee international conference on photonics (icp2010).  . 

abang annuar ehsan and mohd. kamil abd. rahman.  (2010).  acrylic-based y-branch plastic optical fiber attenuator.  - proceedings of the ieee international conference on photonics (icp2010).  . 

abang annuar ehsan and mohd. kamil abd. rahman.  (2010).  optimization of device model for metal-based 1x2 y-branch plastic optical fiber coupler.  - proceedings of the ieee international conference on photonics (icp2010).  .