Editing Indium phosphide (section)

===Photovoltaics and optical sensing===
InP can be used in photonic integrated circuits that can generate, amplify, control and detect laser light.<ref>{{Cite book |last=Osgood |first=Richard Jr. |url=https://www.worldcat.org/oclc/1252762727 |title=Principles of photonic integrated circuits : materials, device physics, guided wave design |date=2021 |others=Xiang Meng |publisher=Springer |isbn=978-3-030-65193-0 |oclc=1252762727}}</ref> 

Optical sensing applications of InP include 
*Air pollution control by real-time detection of gases (CO, CO<sub>2</sub>, NO<sub>X</sub> [or NO + NO<sub>2</sub>], etc.).
*Quick verification of traces of toxic substances in gases and liquids, including tap water, or surface contaminations.
*Spectroscopy for non-destructive control of product, such as food. Researchers of [[Eindhoven University of Technology]] and MantiSpectra have already demonstrated the application of an integrated near-infrared spectral sensor for milk.<ref>{{Cite journal |last1=Hakkel |first1=Kaylee D. |last2=Petruzzella |first2=Maurangelo |last3=Ou |first3=Fang |last4=van Klinken |first4=Anne |last5=Pagliano |first5=Francesco |last6=Liu |first6=Tianran |last7=van Veldhoven |first7=Rene P. J. |last8=Fiore |first8=Andrea |date=2022-01-10 |title=Integrated near-infrared spectral sensing |journal=Nature Communications|volume=13 |issue=1 |pages=103 |doi=10.1038/s41467-021-27662-1 |pmc=8748443 |pmid=35013200|bibcode=2022NatCo..13..103H }}</ref> In addition, it has been proven that this technology can also be applied to plastics and illicit drugs.<ref>{{Cite journal |last1=Kranenburg |first1=Ruben F. |last2=Ou |first2=Fang |last3=Sevo |first3=Petar |last4=Petruzzella |first4=Maurangelo |last5=de Ridder |first5=Renee |last6=van Klinken |first6=Anne |last7=Hakkel |first7=Kaylee D. |last8=van Elst |first8=Don M. J. |last9=van Veldhoven |first9=René |last10=Pagliano |first10=Francesco |last11=van Asten |first11=Arian C. |last12=Fiore |first12=Andrea |date=2022-08-01 |title=On-site illicit-drug detection with an integrated near-infrared spectral sensor: A proof of concept |journal=Talanta |volume=245 |pages=123441 |doi=10.1016/j.talanta.2022.123441 |pmid=35405444 |s2cid=247986674 |doi-access=free }}</ref>