Raman and Other Optical Studies of Semiconductors
{'Code': '03070003', 'Directorate': {'Abbreviation': 'MPS', 'LongName': 'Direct For Mathematical & Physical Scien'}, 'Division': {'Abbreviation': 'DMR', 'LongName': 'Division Of Materials Research'}}
{'SignBlockName': 'Carol A. Savory-Heflin', 'PO_EMAI': None, 'PO_PHON': None}
Raman scattering will be studied from folded acoustic phonons,                  confined optical phonons, and interface optical phonons in                      Gallium Arsenide/Aluminum Arsenide and Gallium Arsenide/Aluminum                Gallium Arsenide superlattices under conditions where the excited               laser light is in resonance with various transitions from valence               subbands to conduction subbands.  These measurements will be                    supplemented by photoluminescence, photoluminescence excitation,                photoreflectance, and spectroscopic ellipsometry measurements.                  Goals include understanding details of electronic structure and                 electron-phonon coupling resulting from valence-band mixing,                    electron-hole exchange interaction, and three-dimensional                       behavior of superlattice wave functions.  Equipment will be                     assembled for real-time spectroscopic ellipsometry measurements                 on a sample growing inside a molecular beam epitaxy machine.                    Real time comparisons will be made between ellipsometry results                 and reflection high energy electron diffraction measurements.                   Goals include improved understanding of epitaxial growth                        processes, incorporation of ellipsometric results into feedback                 control of the growth, and achievement of higher quality samples.
{'FirstName': 'Miles', 'LastName': 'Klein', 'PI_MID_INIT': 'V', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Miles V Klein', 'EmailAddress': 'mvklein@uiuc.edu', 'PI_PHON': '2173331744', 'NSF_ID': '000294910', 'StartDate': '06/01/1988', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'University of Illinois at Urbana-Champaign', 'CityName': 'URBANA', 'ZipCode': '618013620', 'PhoneNumber': '2173332187', 'StreetAddress': '506 S WRIGHT ST', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Illinois', 'StateCode': 'IL', 'CONGRESSDISTRICT': '13', 'CONGRESS_DISTRICT_ORG': 'IL13', 'ORG_UEI_NUM': 'Y8CWNJRCNN91', 'ORG_LGL_BUS_NAME': 'UNIVERSITY OF ILLINOIS', 'ORG_PRNT_UEI_NUM': None}
{'Name': None, 'CityName': None, 'StateCode': None, 'ZipCode': None, 'StreetAddress': None, 'CountryCode': None, 'CountryName': None, 'StateName': None, 'CountryFlag': None, 'CONGRESSDISTRICT': None, 'CONGRESS_DISTRICT_PERF': '""'}
{'Code': '1761', 'Text': 'SOLID STATE PHYSICS'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1988&All=true', 'xml': '8803108.xml'}