6 ▁top ▁international ▁journ als . ▁Professor ▁Gu ' s ▁research ▁has ▁led ▁to ▁significant ▁impact s ▁on ▁soci etal ▁challeng es ▁in ▁solar ▁energy , ▁information ▁technology ▁and ▁big ▁data ▁storage . ▁ ▁He ▁served ▁as ▁President ▁( 2 0 0 2 – 2 0 0 4 ) ▁and ▁Vice ▁President ▁( 2 0 0 4 – 2 0 1 2 ) ▁of ▁the ▁International ▁Society ▁of ▁Opt ics ▁within ▁Life ▁Sciences . ▁He ▁was ▁Vice ▁President ▁of ▁the ▁International ▁Commission ▁for ▁Opt ics ▁( IC O ) ▁ ▁( 2 0 0 5 – 2 0 1 1 ). ▁He ▁was ▁the ▁Chair ▁of ▁the ▁I CO ▁Prize ▁Committee ▁and ▁member ▁of ▁the ▁I CO ▁Gal ile o ▁Gal ile i ▁Award ▁Committee ▁and ▁served ▁on ▁the ▁Young ▁Scient ist ▁Prize ▁Committee ▁in ▁Opt ics ▁of ▁the ▁International ▁Union ▁of ▁P ure ▁and ▁App lied ▁Physics . ▁ ▁He ▁served ▁on ▁the ▁Board ▁of ▁Direct ors ▁of ▁the ▁Opt ical ▁Society ▁of ▁America ▁( Exec utive ▁committee , ▁the ▁fin ance ▁committee , ▁Chair ▁of ▁the ▁International ▁Council , ▁Chair ▁of ▁the ▁Working ▁Group ▁on ▁Asia ). ▁ ▁He ▁was ▁awarded ▁the ▁Ch ang ▁Ji ang ▁Chair ▁Professor ship ▁( Min istry ▁of ▁Education , ▁China , ▁ 2 0 0 7 ), ▁the ▁World ▁Class ▁University ▁Professor ship ▁( Min istry ▁of ▁Education , ▁South ▁Korea , ▁ 2 0 0 9 ), ▁Ein stein ▁Professor ship ▁( Ch inese ▁Academy ▁of ▁Sciences , ▁ 2 0 1 0 ),