physics

Vasily Astratov

Vasily Astratov is a physics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Vasily Astratov rather than just read about it. In short: Vasily Astratov is a full professor of Physics and Optical Science at the University of North Carolina at Charlotte. He became known for launching synthetic opals as new self-assembled photonic crystals for visible light in 1995 in his former group at Ioffe Institute in Russia (jointly with Yurii Vlasov, Alexander Kaplyanskii and co-authors).

Key takeaways

Vasily Astratov belongs to physics; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Vasily Astratov to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Vasily Astratov from memory before moving on to harder problems.

Reference excerpt

Vasily Astratov is a full professor of Physics and Optical Science at the University of North Carolina at Charlotte. He became known for launching synthetic opals as new self-assembled photonic crystals for visible light in 1995 in his former group at Ioffe Institute in Russia (jointly with Yurii Vlasov, Alexander Kaplyanskii and co-authors). This work has resulted in a quest for inverse opals with a complete three-dimensional photonic band gap

Early life He received his M.S. from the Saint Petersburg State University, Russia, in 1981, and received his Ph.D. degree from the A.F. Ioffe Physical-Technical Institute, St. Petersburg, in 1986. At this institution he had accomplished a career as a research scientist, rising through the ranks from staff member (1981–1992), group leader (1992–1997), to senior member of staff in 1997. In 1997–2001 he worked as a postdoctoral scholar at the University of Sheffield where he developed novel surface coupling techniques for studying photonic crystal waveguides and semiconductor microcavities.

Research Prof. V. N. Astratov joined UNC-Charlotte in 2002. His current research is devoted to microspherical photonics including applications of photonic nanojets, coupled-cavity arrays and waveguides resonant light pressure effects and super-resolution microscopy. He was a topical editor for the journal Optics Express in 2005–2011 and an editor and co-editor for two Focus Issues of this journal. He has served as a technical committee member for major international conferences including CLEO 2006–07 and 2012–14, IEEE Photonics 2014–17, Photonics West 2017, ICTON 2009–17, and OECC/ACOFT 2008 and 2014. He co-/authored 15 patents in the US and Russia, and about 180 research publications which eventually brought him an h-index of 44.

Research contributions

Jason Franchak, MS, 2004; Current – Orthodox Priest, Holy Trinity Church, St. Basil Church Diocese of Eastern Pennsylvania. Jason did his MS in Physics and was integral in establishing the lab. His research, under the guidance of Dr. Astratov on optical transportation in chains of microresonators is considered as one of the early papers in the field. Dr. Andrey Kanaev, Postdoc, 2005; Current – Staff Member, Naval Research Laboratory. Primarily a theoretical scientist, Andrey explored optical coupling between un-even and size dependent resonators. Dr. Andrey Kapitonov, Postdoc, 2007; Current – in Belarus. Shashaanka Ashili, PhD, 2007; Current – Founder, Smart Drivinc, CEO of CureScience. Along with Jason, Shashaanka was integral in establishing the lab and further improving the understanding of optical transport and coupling within meso and micro structures. Dr. Kirankumar Hiremath, Postdoc; 2008; Current – Assistant Professor, Indian Institute of Technology, Jodhpur, India. Seungmoo Yang, PhD, 2009; Current – Postdoc, Vollmer lab. Dr. Oleksiy Svitelskiy, Postdoc, 2011; Current – Associate Professor, Gordon College. Arash Darafsheh, PhD, 2013; Current – Assistant Professor of radiation oncology at Washington University School of Medicine at St. Louis Kenneth W. Allen, PhD, 2014; Current – Chief Engineer of the Electromagnetics Division, Georgia Tech Research Institute, Advanced Concepts Laboratory. Yangcheng Li, PhD, 2015; Current – Staff Engineer, Western Digital. Farzaneh Abolmaali, PhD, 2018; Current – Research Scientist, Synrad.

Awards He is a recipient of a number of awards including International Visitor Award in France by Triangle de la Physique in 2011, Senior Visiting EPSRC Fellow Award in the UK in 2006, Award of the Exchange Program adopted between Royal Society and Russian Academy of Sciences in 1996, and the Award in the Annual Competition from A.F. Ioffe Physical-Technical Institute in 1985.

References

External links Official website

Worked examples

Example 1 — a first encounter with Vasily Astratov

Start with the simplest possible case. Write down what Vasily Astratov claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In physics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Vasily Astratov before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Vasily Astratov ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Vasily Astratov

In research: Vasily Astratov appears in physics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Vasily Astratov in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Vasily Astratov is common in secondary-school and first-year university syllabi. It links to neighbouring topics 20th-century births, Academics of the University of Sheffield, Living people, so understanding it makes those chapters shorter.
In everyday life: Look for Vasily Astratov outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Vasily Astratov in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Vasily Astratov means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Vasily Astratov out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Vasily Astratov in simple terms?

Why does Vasily Astratov matter?

Because it connects several physics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Vasily Astratov?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Vasily Astratov.