Welcome to the Instrumentation Physics Laboratory.

The Instrumentation Physics Laboratory (IPL) is one of the research laboratories in the National Institute of PhysicsCollege of ScienceUniversity of the Philippines Diliman. The main research concerns of the IPL are in the fields of optics and photonicsvideo and image processing, and complex systems in nature and society. We employ experimental approaches and mathematical modeling to address real-world problems of practical importance. Our laboratory promotes an atmosphere of learning and collaboration among teachers, graduate, and undergraduate students in building a scientific tradition in the Philippines.

  • D. N. Dailisan and M. T. Lim. Vehicular traffic modeling with greedy lane-changing and inordinate waiting. Physica A: Statistical Mechanics and its Applications [DOI:10.1016/j.physa.2019.01.107]
  • J.A. Balista and C. Saloma, "Modified Inelastic Bouncing Ball Model of the Brazil Nut Effect and its Reverse", Granular Matter 20/3 (August 2018) pp 1-12 DOI: 10.1007/s10035-018-0821-2 [read]
  • C. Saloma, "The importance of an Undergraduate Thesis", Editorial, Phil. J Sc 147, Issue2 (June 2018) [read]
  • C. Saloma, "Access to Tertiary Education", Editorial, Phil. J Sc 146, Issue 4 (Dec 2017) [read]
  • C. Saloma, "Journal Status Report" Editorial, Phil. J Sc 146, Issue 3 (Sep 2017) [read]
  • C. Janer, D. Biton, and R. Batac, "Incorporating space, time, and magnitude measures in a network characterization of earthquake events", Acta Geophysica (2017). DOI:10.1007/s11600-017-0100-3
  • AA Paguirigan Jr, MJG Angco, and JY Bantang, "A fragmentation model of earthquake-like behavior in internet access activity", Int. J Mod. Phys. C 28(7) (2017). DOI:10.1142/S0129183117500929
  • C Saloma, “Measuring the performance of our higher education institutions – Part II,” Editorial, Phil. J Sc 146, Issue 2 (June 2017) [read]
  • C Saloma, “Measuring the Performance of the Philippine Scientific Enterprise System,” Public Policy Vol. XV No. 2, pp 122 - 161 (2016) [read]
  • Rene C Batac, Statistical Properties of the Immediate Aftershocks of the 15 October 2013 Magnitude 7.1 Earthquake in Bohol, Philippines, Acta Geophysica (2015). DOI:10.1515/acgeo-2015-0054
  • James Christopher S. Pang and Johnrob Y. Bantang, Hodgkin–Huxley neurons with defective and blocked ion channels, Int. J. Mod. Phys. C 26, 1550112 (2015).  DOI:10.1142/S0129183115501120
  • Anjali B Tarun, Antonino A Paguirigan, Rene C Batac, Spatiotemporal recurrences of sandpile avalanches, Physica A 436, 293-300 (2015). DOI:10.1016/j.physa.2015.05.016
  • Junius Andre Balista and Caesar Saloma, Modified Inelastic Bouncing Ball Model for Describing the Dynamics of Granular Materials in a Vibrated Container, Physica D 29, 17-20 (2015). DOI:10.1016/j.physd.2014.10.003
  • Antonino Paguirigan Jr., Christopher Monterola, and Rene Batac, Loss of criticality in the avalanche statistics of sandpiles with dissipative sites, Commun. Nonlin. Sci. Numer. Simulat. 20(3), 785–793 (2015). DOI:10.1016/j.cnsns.2014.06.020
  • C Saloma, GJ Perez, CA Gavile, JJ Ick-Joson, and C Palmes-Saloma, Prior individual training and self-organized queuing during group emergency escape of mice from water pool, PLOS ONE DOI:10.1371/journal.pone.0118508 (2015). 

Prof. Caesar Saloma


Prof. Caesar Saloma
of the Instrumentation Physics Laboratory (IPL) is one of the recipients of this year's UP President Edgardo J. Angara (UPPEJA) Fellowship Award. 

Works of IPL researchers have been featured in national and international news.


  • New IPL papers (2015) New IPL papers (2015)From the IPL Coordinator Dear IPL, I am pleased to announce the acceptance of the following papers from IPL authors: R.C. Batac, Statistical properties of ...
    Posted Jan 23, 2015, 1:58 AM by IPL Webm
  • From the IPL Coordinator: IPL Organizational Meeting and Open House, 11 August 2014 From the IPL Coordinator: IPL Organizational Meeting and Open House, 11 August 2014 Dear Instru: Good day! A. To formally start the semester, we will be having an #Organizational Meeting ...
    Posted Aug 6, 2014, 8:51 PM by IPL Webm
  • New IPL Publication in Philippine Science Letters New IPL Publication in Philippine Science Letters We are pleased to announce the acceptance of the following paper: R.B. Cabral, P.M. Aliño, A.C.M. Balingit, C.M ...
    Posted Jul 14, 2014, 2:58 AM by IPL Webm
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