This map shows the geographic impact of Robert Lutwak's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Robert Lutwak with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Robert Lutwak more than expected).
This network shows the impact of papers produced by Robert Lutwak. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Robert Lutwak. The network helps show where Robert Lutwak may publish in the future.
Co-authorship network of co-authors of Robert Lutwak
This figure shows the co-authorship network connecting the top 25 collaborators of Robert Lutwak.
A scholar is included among the top collaborators of Robert Lutwak based on the total number of
citations received by their joint publications. Widths of edges
represent the number of papers authors have co-authored together.
Node borders
signify the number of papers an author published with Robert Lutwak. Robert Lutwak is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Tjoelker, R. L., et al.. (2012). Mercury atomic frequency standards for space based navigation and timekeeping. NASA Technical Reports Server (NASA).4 indexed citations
3.
Lutwak, Robert. (2011). The SA.45s Chip-Scale Atomic Clock – Early Production Statistics. 207–220.10 indexed citations
Lutwak, Robert, Ahmed Nabih Zaki Rashed, M. Varghese, et al.. (2007). The Miniature Atomic Clock - Pre-Production Results. Proceedings of the IEEE International Frequency Control Symposium. 1327–1333.35 indexed citations
9.
Lutwak, Robert, Ahmed Nabih Zaki Rashed, M. Varghese, et al.. (2007). The chip-scale atomic clock : prototype evaluation.. Defense Technical Information Center (DTIC). 269–290.26 indexed citations
10.
Serkland, Darwin K., Gregory M. Peake, K.M. Geib, et al.. (2006). VCSELs for atomic clocks. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 6132. 613208–613208.40 indexed citations
Lutwak, Robert, et al.. (2004). The Chip-Scale Atomic Clock - Recent Development Progress. Defense Technical Information Center (DTIC). 467–478.37 indexed citations
15.
Lutwak, Robert, William Riley, M. Varghese, et al.. (2004). The Chip-Scale Atomic Clock - Low-Power Physics Package. Defense Technical Information Center (DTIC). 339–354.56 indexed citations
16.
Lutwak, Robert, et al.. (2002). The Chip-Scale Atomic Clock - Coherent Population Trapping Vs. Conventional Interrogation. Defense Technical Information Center (DTIC). 539–550.43 indexed citations
17.
Lutwak, Robert, et al.. (2001). Optically Pumped Cesium-Beam Frequency Standard for GPS-III. Defense Technical Information Center (DTIC).12 indexed citations
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive
bibliographic database. While OpenAlex provides broad and valuable coverage of the global
research landscape, it—like all bibliographic datasets—has inherent limitations. These include
incomplete records, variations in author disambiguation, differences in journal indexing, and
delays in data updates. As a result, some metrics and network relationships displayed in
Rankless may not fully capture the entirety of a scholar's output or impact.