Prof. ChandraSekhar Roychoudhuri

Fellow Member | Gratis Res. Professor at University of Connecticut
Roychoudhuri, ChandraSekhar
SPIE Leadership: Retrieving Data, please wait...
SPIE Membership: 26.0 years
SPIE Awards: Fellow status | 2019 SPIE Community Champion
SPIE Involvement: Retrieving Data, please wait...
Area of Expertise: Nature of light, Superpopsition Phenomena, What are photons?, Coherence as detector time constant, Non-Interaction of Waves, Mode-locking vs. time-gating
Websites: Personal Website | Personal Website
Social Media: LinkedIn
Contact Details:
Sign In to send a private message or view contact details

Profile Summary

I have worked both in academia (USA, India, Mexico) and in industry (TRW, Perkin Elmer and United technologies). I have recently published a book, "Causal Physics: Photon Model by Non-Interaction of Waves", CRC/ Taylor & Francis, 2014. The book revisits all the basic optical phenomena by incorporating the universal property that waves by themselves do not interact (interfere) with each other in the absence of an interacting material medium. The Superposition Effects (fringes) due to multiple beams of waves or particles become manifest only as physical transformations in detector arrays; when simultaneously stimulated by all the beams. Thus, measurable Superposition Effects are Causal & Local. This Non-Interaction of Waves or NIW-property was underscored by the father of wave propagation, Christian Huygens; which is the basis of Huygens' Principle; which we have been neglecting for over three centuries. This principle eventually evolved into Huygens-Fresnel Diffraction Integral; which is at the core of analyzing almost all optical phenomena. Explicit recognition of the NIW-property removes a large number of prevalent contradictory hypotheses, both in classical and in quantum optics, including wave-particle duality.
at SPIE Annual meetings.
Engineering innovations in optics can be further accelerated once we start visualizing the processes behind the superposition effects while applying the thus far neglected NIW-property.
I have initiated overseen the biennial conference series, from 2005 through 2015, on the "Nature of light" at the SPIE annual meetings; besides giving a 2-hour workshop every year at the Phonics West. I have also been giving 1 to 3-day workshops on the causal nature of light to student chapters all over the world for over five years.
I have BS and MS in Physics from the Jadavpur University, Kolkata, India; and PhD in Optics from the Institute of Optics, University of Rochester, USA.

Upcoming Presentations

Most Recent | Show All
Retrieving Data, please wait...


Most Recent | Show All
Retrieving Data, please wait...

Conference Committee Involvement

Most Recent | Show All
Retrieving Data, please wait...

Course Instructor

Most Recent | Show All
Retrieving Data, please wait...
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?