Spatial light modulation using electroabsorption in a GaAs charge‐coupled device

Autor:	R. H. Kingston, K. B. Nichols, F. J. Leonberger, B. E. Burke
Rok vydání:	1982
Předmět:	Materials science Photon Physics and Astronomy (miscellaneous) Spatial filter business.industry Band gap Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Signal Optics Modulation Electric field Optoelectronics Charge-coupled device business Absorption (electromagnetic radiation)
Zdroj:	Applied Physics Letters. 41:413-415
ISSN:	1077-3118 0003-6951
DOI:	10.1063/1.93548
Popis:	High‐speed one‐ and two‐dimensional spatial light modulation may be carried out using the electroabsorption (Franz‐Keldysh) effect in a GaAs buried‐channel charge‐coupled device (CCD). For photon energies slightly lower than the energy gap, the transmission through or along the surface of a CCD structure may be controlled by the signal charge in the wells, through the change of electric field with charge. The modulator is thus electrically addressable and it promises optical quality sufficient for coherent applications. Experimental measurements on a specially designed GaAs CCD structure with semitransparent gates have verified the predicted performance.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::449f98eac72a08ca68638267dd7d45ff https://doi.org/10.1063/1.93548 Zobrazit plný text záznamu