km ²). ▁ ▁As ▁of ▁the ▁census ▁of ▁ 2 0 1 0 , ▁there ▁were ▁ 1 , 6 4 2 ▁people , ▁ 5 9 6 ▁households , ▁and ▁ 4 7 5 ▁families ▁res iding ▁in ▁the ▁neighborhood . ▁ ▁See ▁also ▁ ▁Ne igh bor hood s ▁in ▁New ▁Orleans ▁ ▁References ▁ ▁Category : Ne igh bor hood s ▁in ▁New ▁Orleans <0x0A> </s> ▁G lass ▁pol ing ▁is ▁the ▁physical ▁process ▁through ▁which ▁the ▁distribution ▁of ▁the ▁elect rical ▁charges ▁is ▁changed . ▁In ▁principle , ▁the ▁charges ▁are ▁randomly ▁distributed ▁and ▁no ▁permanent ▁electric ▁field ▁exists ▁inside ▁the ▁glass . ▁ ▁When ▁the ▁charges ▁are ▁moved ▁and ▁fixed ▁at ▁a ▁place ▁then ▁a ▁permanent ▁field ▁will ▁be ▁recorded ▁in ▁the ▁glass . ▁This ▁electric ▁field ▁will ▁permit ▁various ▁optical ▁functions ▁in ▁the ▁glass , ▁impossible ▁otherwise . ▁The ▁resulting ▁effect ▁would ▁be ▁like ▁having ▁positive ▁and ▁negative ▁pol es ▁as ▁in ▁a ▁battery , ▁but ▁inside ▁an ▁optical ▁fib re . ▁ ▁The ▁effect ▁will ▁be ▁a ▁change ▁of ▁the ▁optical ▁fib re ▁properties . ▁For ▁instance ▁glass ▁pol ing ▁will ▁permit ▁to ▁realize ▁second - harm onic ▁light ▁generation ▁which ▁consists ▁of ▁converting ▁an ▁input ▁light ▁into ▁another ▁w avel ength , ▁twice ▁the ▁original ▁radiation . ▁For ▁instance ▁a ▁near ▁inf ra red ▁radiation ▁around ▁ 1 0 3 0   nm ▁could ▁be ▁converted ▁with ▁this ▁process ▁to ▁the ▁ 5 1 5   nm ▁w avel ength , ▁corresponding ▁to ▁green ▁light