Publications

Sr.	Title	Year
51	CJ Knill, SS Karkare, JV Conway, BM Dunham, KW Smolenski, HA Padmore, Design of the ASU Photocathode Lab, North American Particle Acc. Conf., 2673-7000	2019
52	Jai Kwan Bae, Ivan Bazarov, Pietro Musumeci, Siddharth Karkare, Howard Padmore, Jared Maxson, Brightness of femtosecond nonequilibrium photoemission in metallic photocathodes at wavelengths near the photoemission threshold, Journal of Applied Physics, 124, 24, 244903	2018
53	J Bae, I Bazarov, L Cultrera, J Maxson, P Musumeci, X Shen, S Karkare, H Padmore, Multi-photon Photoemission and Ultrafast Electron Heating in Cu Photocathodes at Threshold, Proceedings of IPAC2018, Vancouver, Canada, TUPML026,	2018
54	JT Paul, RG Hennig, A. Galdi, I. V. Bazarov, S. Karkare, H. Padmore, Computational Screening for Low Emittance Photocathodes, Proc. 9th Int Part. Accel. Conf, 4	2018
55	P Musumeci, J Giner Navarro, JB Rosenzweig, L Cultrera, I Bazarov, J Maxson, S Karkare, H Padmore, Advances in bright electron sources, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 907, 209-220	2018
56	GS Gevorkyan, S Karkare, S Emamian, IV Bazarov, HA Padmore, Effects of physical and chemical surface roughness on the brightness of electron beams from photocathodes, Physical Review Accelerators and Beams, 21, 9, 093401	2018
57	S Karkare, HA Padmore, G Adhikari, WA Schroeder, Intrinsic emittance of single crystal cathodes, 9th Int. Particle Accelerator Conf.(IPAC'18), Vancouver, BC, Canada, April 29-May 4, 2018, 4263-4266	2018
58	Johannes Kevin Nangoi, TA Arias, Siddharth Karkare, HA Padmore, WA Schroeder, The role of electron-phonon scattering in transverse momentum conservation in PbTe (111) photocathodes, 9th International Particle Accelerator Conference (IPAC), 1414-1416	2018
59	Siddharth Karkare, S Emamian, G Gevorkyan, HA Padmore, A Schmidt, Physical and Chemical Roughness of Alkali-Animonide Cathodes, Proceedings of IPAC’18, 4259	2018
60	D A Dimitrov, G. I. Bell, I. Ben-Zvi, J. Smedley, J. Feng, S. Karkare, H. A. Padmore, Modeling Surface Roughness Effects and Emission Properties of Bulk and Layered Metallic Photocathode, Brookhaven National Lab.(BNL), Upton, NY (United States), BNL-207938-2018-COPA	2018
61	Johannes Kevin Nangoi, Siddharth Karkare, Howard Padmore, Tomas Arias, The important role of electron-phonon scattering in photoemission from PbTe (111), APS March Meeting Abstracts, 2018, R29. 003	2018
62	Zihao Ding, Siddharth Karkare, Jun Feng, Daniele Filippetto, Matthew Johnson, Steve Virostek, Fernando Sannibale, James Nasiatka, Mengjia Gaowei, John Sinsheimer, Erik Muller, John Smedley, Howard Padmore, Temperature-dependent quantum efficiency degradation of K-Cs-Sb bialkali antimonide photocathodes grown by a triple-element codeposition method, Physical Review Accelerators and Beams, 20, 11, 113401	2017
63	DA Dimitrov, GI Bell, J Smedley, I Ben-Zvi, J Feng, S Karkare, HA Padmore, Modeling quantum yield, emittance, and surface roughness effects from metallic photocathodes, Journal of Applied Physics, 122, 16, 165303	2017
64	Dimitre Dimitrov, George Bell, Ilan Ben-Zvi, Jun Feng, Siddharth Karkare, Howard Padmore, John Smedley, David Smithe, Seth Veitzer, Modeling Cathode Roughness, Work Function, and Field Enhancement Effects on Electron Emission, Proceedings of the 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14-19	2017
65	Siddharth Karkare, Jun Feng, Xumin Chen, Weishi Wan, F Javier Palomares, T-C Chiang, Howard A Padmore, Reduction of Intrinsic Electron Emittance from Photocathodes Using Ordered Crystalline Surfaces, Physical review letters, 118, 16, 164802	2017
66	Siddharth Karkare, Weishi Wan, Jun Feng, Tai C Chiang, Howard A Padmore, One-step model of photoemission from single-crystal surfaces, Physical Review B, 95, 7, 075439	2017
67	Jun Feng, Siddharth Karkare, James Nasiatka, Susanne Schubert, John Smedley, Howard Padmore, Near atomically smooth alkali antimonide photocathode thin films, Journal of Applied Physics, 121, 044904	2017
68	J Maxson, P Musumeci, L Cultrera, S Karkare, H Padmore, Ultrafast laser pulse heating of metallic photocathodes and its contribution to intrinsic emittance, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 865, 99-104	2017
69	Dimitre Dimitrov, George Bell, Ilan Ben-Zvi, Siddharth Karkare, Howard Padmore, John Smedley, David Smithe, Chuandong Zhou, 3D Modeling and Simulations of Electron Emission From Photocathodes With Controlled Rough Surfaces, Proceedings of the 2nd North American Particle Accelerator Conference, København, Denmark, 14-19	2017
70	Susanne Schubert, Jared Wong, Jun Feng, Siddharth Karkare, Howard Padmore, Miguel Ruiz-Osés, John Smedley, Erik Muller, Zihao Ding, Mengjia Gaowei, Klaus Attenkofer, Xue Liang, Junqi Xie, Julius Kühn, Bi-alkali antimonide photocathode growth: An X-ray diffraction study, Journal of Applied Physics, 120, 3, 035303	2016
71	Siddharth Karkare, Weishi Wan, Jun Feng, Howard Padmore, Photoemission from Shockley surface state on Ag (111), APS March Meeting Abstracts, 2016, A47. 014	2016
72	Luca Cultrera, Siddharth Karkare, Hyeri Lee, Xianghong Liu, Ivan Bazarov, Bruce Dunham, Cold electron beams from cryocooled, alkali antimonide photocathodes, PHYSICAL REVIEW SPECIAL TOPICS—ACCELERATORS AND BEAMS, 18, 113401	2015
73	Jun Feng, J Nasiatka, Weishi Wan, Siddharth Karkare, John Smedley, Howard A Padmore, Thermal limit to the intrinsic emittance from metal photocathodes, Applied Physics Letters, 107, 134101	2015
74	Siddharth Karkare, Ivan Bazarov, Effects of Surface Nonuniformities on the Mean Transverse Energy from Photocathodes, Physical Review Applied, 4, 024015	2015
75	Hyeri Lee, Siddharth Karkare, Luca Cultrera, Andrew Kim, Ivan V Bazarov, Review and demonstration of ultra-low-emittance photocathode measurements, Review of Scientific Instruments, 86, 7, 073309	2015
76	Siddharth Karkare, Luca Cultrera, Yoon-Woo Hwang, Richard Merluzzi, Ivan Bazarov, 2-D energy analyzer for low energy electrons, Review of Scientific Instruments, 86, 3, 033301	2015
77	Siddharth Karkare, Dimitre Dimitrov, William Schaff, Luca Cultrera, Adam Bartnik, Xianghong Liu, Eric Sawyer, Teresa Esposito, Ivan Bazarov, , JOURNAL OF APPLIED PHYSICS, 117, 10	2015
78	Siddharth Karkare, Dimitre Dimitrov, William Schaff, Luca Cultrera, Adam Bartnik, Xianghong Liu, Eric Sawyer, Teresa Esposito, Ivan Bazarov, Erratum: “Monte Carlo charge transport and photoemission from negative electron affinity GaAs photocathodes” [J. Appl. Phys. 113, 104904 (2013)], Journal of Applied Physics, 117, 10, 109901	2015
79	Siddharth Karkare, Laurent Boulet, Arunima Singh, Richard Hennig, Ivan Bazarov, Ab initio studies of Cs on GaAs (100) and (110) surfaces, Physical Review B, 91, 3, 035408	2015
80	Siddharth Srikrishna Karkare, Ultra-low emittance III-V semiconductor photocathodes, ProQuest Dissertations Publishing, 3710499	2015
81	Siddharth Karkare, Luca Cultrera, Bill Schaff, Ivan Bazarov, Xiuguang Jin, Yoshikazu Takeda, Photoemission from III-V semiconductor cathodes, 5th International Particle Accelerator Conference, 736-738	2014
82	Luca Cultrera, Mark Brown, Siddharth Karkare, William Schaff, Ivan Bazarov, Bruce Dunham, Alkali azide based growth of high quantum efficiency photocathodes, Journal of Vacuum Science & Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phenomena, 32, 3, 031211	2014
83	Siddharth Karkare, Laurent Boulet, Luca Cultrera, Bruce Dunham, Xianghong Liu, William Schaff, Ivan Bazarov, Ultrabright and Ultrafast III–V Semiconductor Photocathodes, Physical review letters, 112, 097601	2014
84	GH Hoffstaetter, A Bartnik, IV Bazarov, DH Bilderback, MG Billing, JD Brock, JA Crittenden, L Cultrera, D Dale, JA Dobbins, BM Dunham, RD Ehrlich, MP Ehrlichman, R Eichhorn, KD Finkelstein, E Fontes, MJ Forster, S Full, F Furuta, D Gonnella, SW Gray, SM Gruner, C Gulliford, DL Hartill, Y He, RG Helmke, V Ho, RP Kaplan, SS Karkare, VO Kostroun, HA Lee, Y Li, X Liu, MU Liepe, CE Mayes, JM Maxson, AA Mikhailichenko, HS Padamsee, R Patterson, SB Peck, SE Posen, PG Quigley, P Revesz, DH Rice, DC Sagan, JO Sears, VD Shemelin, DM Smilgies, EN Smith, KW Smolenski, AB Temnykh, M Tigner, NRA Valles, VG Veshcherevich, AR Woll, Y Xie, Z Zhao, Readiness for the Cornell ERL, 4th International Particle Accelerator Conference, IPAC 2013, 2447-2449	2013
85	L Cultrera, S Karkare, B Lillard, A Bartnik, I Bazarov, B Dunham, W Schaff, K Smolenski, Growth and characterization of rugged sodium potassium antimonide photocathodes for high brilliance photoinjector, Applied Physics Letters, 103, 103504	2013
86	WA Schroeder, H Padmore, T Vecchione, S Karkare, Single crystal metal photocathodes: Benchmarking performance against Ab initio theory, Univ. of Illinois, Chicago, IL (United States), DOE-UIC-SC-0017621	2013
87	Colwyn Gulliford, Adam Bartnik, Ivan Bazarov, Luca Cultrera, John Dobbins, Bruce Dunham, Francisco Gonzalez, Siddharth Karkare, Hyeri Lee, Heng Li, Yulin Li, Xianghong Liu, Jared Maxson, Christian Nguyen, Karl Smolenski, Zhi Zhao, Demonstration of low emittance in the Cornell energy recovery linac injector prototype, Physical Review Special Topics-Accelerators and Beams, 16, 073401	2013
88	Siddharth Karkare, Dimitre Dimitrov, William Schaff, Luca Cultrera, Adam Bartnik, Xianghong Liu, Eric Sawyer, Teresa Esposito, Ivan Bazarov, Monte Carlo charge transport and photoemission from negative electron affinity GaAs photocathodes, Journal of Applied Physics, 113, 104904	2013
89	Bruce Dunham, John Barley, Adam Bartnik, Ivan Bazarov, Luca Cultrera, John Dobbins, Georg Hoffstaetter, Brent Johnson, Roger Kaplan, Siddharth Karkare, Vaclav Kostroun, Yulin Li, Matthias Liepe, Xianghong Liu, Florian Loehl, Jared Maxson, Peter Quigley, John Reilly, David Rice, Daniel Sabol, Eric Smith, Karl Smolenski, Maury Tigner, Vadim Vesherevich, Dwight Widger, Zhi Zhao, Record high-average current from a high-brightness photoinjector, Applied Physics Letters, 102, 034105	2013
90	SS Karkare, IV Bazarov, LE Boulet, M Brown, L Cultrera, B Dunham, N Erickson, G Denham, A Kim, B Lillard, TP Moore, C Nguyen, W Schaff, KW Smolenski, H Wang, Advances in photocathode technology at cornell university, Proc. North American Particle Accelerator Conf.(NAPAC'13), 391-393	2013
91	DA Dimitrov, C Nieter, Y Choi, I Ben-Zvi, J Smedley, T Rao, I Bazarov, S Karkare, W Schaff, MODELING LOCALIZED STATES AND BAND BENDING EFFECTS ON ELECTRON EMISSION ION FROM GaAs, Proceedings of PAC2013, Pasadena, CA USA,	2013
92	H. Wang S. Karkare, I. V. Bazarov, L. E. Boulet, M. Brown, , North American Particle Accelerator Conference 2013,	2013
93	Yongjun Choi, Dimitre A Dimitrov, Chet Nieter, Siddharth Karkare, I Bazarov, Monte Carlo simulations of charge transport and electron emission from GaAs photocathodes, Proceedings of PAC, 616	2013
94	Bruce Dunham, A Bartnik, I Bazarov, J Dobbins, C Gulliford, S Karkare, V Kostroun, Y Li, X Liu, F Loehl, J Maxson, D Rice, K Smolenski, Z Zhao, Performance of the Cornell high-brightness, high-power electron injector, IPAC2012, MOOAA01,	2012
95	Jared Maxson, Luca Cultrera, Ivan Bazarov, Bruce Dunham, Sergey Belomestnykh, John Dobbins, Siddharth Karkare, Roger Kaplan, Vaclav Kostroun, Yulin Li, Xianghong Liu, Florian Löhl, Karl Smolenski, Zhi Zhao, David Rice, Peter Quigley, Maury Tigner, Vadim Veshcherevich, Kenneth Finkelstein, Darren Dale, Benjamin Pichler, CHARACTERIZATION OF PHOTOCATHODE DAMAGE DURING HIGH CURRENT OPERATION OF THE CORNELL ERL PHOTOINJECTOR, 3rd International Particle Accelerator Conference, 2717-2719	2012
96	L Cultrera, I Bazarov, J Conway, B Dunham, Y Hwang, Y Li, X Liu, T Moore, R Merluzzi, K Smolenski, S Karkare, J Maxson, W Schaff, Photocathode r&d at cornell university, Proceedings of IPAC, 2137	2012
97	Luca Cultrera, Jared Maxson, Ivan Bazarov, Sergey Belomestnykh, John Dobbins, Bruce Dunham, Siddharth Karkare, Roger Kaplan, Vaclav Kostroun, Yulin Li, Xianghong Liu, Florian Löhl, Karl Smolenski, Zhi Zhao, David Rice, Peter Quigley, Maury Tigner, Vadim Veshcherevich, Kenneth Finkelstein, Darren Dale, Benjamin Pichler, Photocathode behavior during high current running in the Cornell energy recovery linac photoinjector, Physical Review Special Topics-Accelerators and Beams, 14, 120101	2011
98	Luca Cultrera, Ivan Bazarov, Adam Bartnik, Bruce Dunham, Siddharth Karkare, Richard Merluzzi, Matthew Nichols, Thermal emittance and response time of a cesium antimonide photocathode, Applied Physics Letters, 99, 152110	2011
99	Ivan Bazarov, Luca Cultrera, Adam Bartnik, Bruce Dunham, Siddharth Karkare, Yulin Li, Xianghong Liu, Jared Maxson, William Roussel, Thermal emittance measurements of a cesium potassium antimonide photocathode, Applied Physics Letters, 98, 224101	2011
100	Siddharth Karkare, Ivan Bazarov, Effect of nanoscale surface roughness on transverse energy spread from GaAs photocathodes, Applied Physics Letters, 98, 094104	2011